15489295936 has 63 divisors (see below), whose sum is σ = 31499619627. Its totient is φ = 7556968320.

The previous prime is 15489295933. The next prime is 15489295949. The reversal of 15489295936 is 63959298451.

The square root of 15489295936 is 124456.

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

It is a super-2 number, since 2×15489295936² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15489295933) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 46795291 + ... + 46795621.

Almost surely, 2^15489295936 is an apocalyptic number.

15489295936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

15489295936 is the 124456-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15489295936

15489295936 is an abundant number, since it is smaller than the sum of its proper divisors (16010323691).

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

15489295936 is an frugal number, since it uses more digits than its factorization.

15489295936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768 (or 380 counting only the distinct ones).

The product of its digits is 20995200, while the sum is 61.

The spelling of 15489295936 in words is "fifteen billion, four hundred eighty-nine million, two hundred ninety-five thousand, nine hundred thirty-six".