1515150028900 has 36 divisors (see below), whose sum is σ = 3299745209908. Its totient is φ = 603872058240.

The previous prime is 1515150028891. The next prime is 1515150028907. The reversal of 1515150028900 is 98200515151.

It can be written as a sum of positive squares in 6 ways, for example, as 193473300736 + 1321676728164 = 439856^2 + 1149642^2 .

It is a super-2 number, since 2×1515150028900² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1515150028900.

It is not an unprimeable number, because it can be changed into a prime (1515150028907) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 27321579 + ... + 27376978.

Almost surely, 2^{1515150028900} is an apocalyptic number.

1515150028900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1515150028900 is an abundant number, since it is smaller than the sum of its proper divisors (1784595181008).

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

1515150028900 is a wasteful number, since it uses less digits than its factorization.

1515150028900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54698848 (or 54698841 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 37.

The spelling of 1515150028900 in words is "one trillion, five hundred fifteen billion, one hundred fifty million, twenty-eight thousand, nine hundred".