15489970632900 has 243 divisors, whose sum is σ = 48985185698631. Its totient is φ = 4094166746880.

The previous prime is 15489970632881. The next prime is 15489970633037. The reversal of 15489970632900 is 923607998451.

The square root of 15489970632900 is 3935730.

It is a perfect power (a square), and thus also a powerful number.

15489970632900 is a `hidden beast` number, since 1 + 5 + 489 + 9 + 7 + 0 + 63 + 2 + 90 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3010481785476 + 12479488847424 = 1735074^2 + 3532632^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 14995130784 + ... + 14995131816.

It is a 2-persistent number, because it is pandigital, and so is 2⋅15489970632900 = 30979941265800, but 3⋅15489970632900 = 46469911898700 is not.

Almost surely, 2^{15489970632900} is an apocalyptic number.

15489970632900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15489970632900 is the 3935730-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15489970632900

15489970632900 is an abundant number, since it is smaller than the sum of its proper divisors (33495215065731).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15489970632900 is a wasteful number, since it uses less digits than its factorization.

15489970632900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340 (or 1170 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 63.

The spelling of 15489970632900 in words is "fifteen trillion, four hundred eighty-nine billion, nine hundred seventy million, six hundred thirty-two thousand, nine hundred".