15143794520 has 64 divisors (see below), whose sum is σ = 34578666720. Its totient is φ = 5967903744.

The previous prime is 15143794517. The next prime is 15143794559. The reversal of 15143794520 is 2549734151.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3259319 + ... + 3263961.

Almost surely, 2^15143794520 is an apocalyptic number.

15143794520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15143794520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17289333360).

15143794520 is an abundant number, since it is smaller than the sum of its proper divisors (19434872200).

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

15143794520 is a wasteful number, since it uses less digits than its factorization.

15143794520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5844 (or 5840 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 15143794520 in words is "fifteen billion, one hundred forty-three million, seven hundred ninety-four thousand, five hundred twenty".