15315620234 has 16 divisors (see below), whose sum is σ = 23598890568. Its totient is φ = 7449403392.

The previous prime is 15315620207. The next prime is 15315620237. The reversal of 15315620234 is 43202651351.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14388722209 + 926898025 = 119953^2 + 30445^2 .

It is a super-2 number, since 2×15315620234² (a number of 21 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 15315620234.

It is not an unprimeable number, because it can be changed into a prime (15315620237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435434 + ... + 469290.

Almost surely, 2^15315620234 is an apocalyptic number.

15315620234 is a deficient number, since it is larger than the sum of its proper divisors (8283270334).

15315620234 is a wasteful number, since it uses less digits than its factorization.

15315620234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40009.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 15315620234 in words is "fifteen billion, three hundred fifteen million, six hundred twenty thousand, two hundred thirty-four".