15538648034 has 48 divisors (see below), whose sum is σ = 29218013496. Its totient is φ = 6143155200.

The previous prime is 15538648019. The next prime is 15538648061. The reversal of 15538648034 is 43084683551.

It can be written as a sum of positive squares in 4 ways, for example, as 9495917809 + 6042730225 = 97447^2 + 77735^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 15538648034.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2648264 + ... + 2654124.

Almost surely, 2^15538648034 is an apocalyptic number.

15538648034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

15538648034 is a deficient number, since it is larger than the sum of its proper divisors (13679365462).

15538648034 is a wasteful number, since it uses less digits than its factorization.

15538648034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7971 (or 7964 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 47.

The spelling of 15538648034 in words is "fifteen billion, five hundred thirty-eight million, six hundred forty-eight thousand, thirty-four".