15479595427989 has 32 divisors (see below), whose sum is σ = 25733456925696. Its totient is φ = 8040991259520.

The previous prime is 15479595427987. The next prime is 15479595427999. The reversal of 15479595427989 is 98972459597451.

It is not a de Polignac number, because 15479595427989 - 2¹ = 15479595427987 is a prime.

It is a super-2 number, since 2×15479595427989² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15479595427987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3766794 + ... + 6719220.

It is an arithmetic number, because the mean of its divisors is an integer number (804170528928).

Almost surely, 2^{15479595427989} is an apocalyptic number.

It is an amenable number.

15479595427989 is a deficient number, since it is larger than the sum of its proper divisors (10253861497707).

15479595427989 is a wasteful number, since it uses less digits than its factorization.

15479595427989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2975145.

The product of its digits is 10287648000, while the sum is 84.

The spelling of 15479595427989 in words is "fifteen trillion, four hundred seventy-nine billion, five hundred ninety-five million, four hundred twenty-seven thousand, nine hundred eighty-nine".