15298815642 has 32 divisors (see below), whose sum is σ = 34455988224. Its totient is φ = 4486455600.

The previous prime is 15298815533. The next prime is 15298815671. The reversal of 15298815642 is 24651889251.

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, 3736668 + ... + 3740759.

It is an arithmetic number, because the mean of its divisors is an integer number (1076749632).

Almost surely, 2^15298815642 is an apocalyptic number.

15298815642 is an abundant number, since it is smaller than the sum of its proper divisors (19157172582).

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

15298815642 is a wasteful number, since it uses less digits than its factorization.

15298815642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7477474.

The product of its digits is 1382400, while the sum is 51.

The spelling of 15298815642 in words is "fifteen billion, two hundred ninety-eight million, eight hundred fifteen thousand, six hundred forty-two".