15104540638 has 16 divisors (see below), whose sum is σ = 24720961536. Its totient is φ = 6864466840.

The previous prime is 15104540573. The next prime is 15104540653. The reversal of 15104540638 is 83604540151.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 15104540597 and 15104540606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69795 + ... + 187297.

It is an arithmetic number, because the mean of its divisors is an integer number (1545060096).

Almost surely, 2^15104540638 is an apocalyptic number.

15104540638 is a deficient number, since it is larger than the sum of its proper divisors (9616420898).

15104540638 is a wasteful number, since it uses less digits than its factorization.

15104540638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123359.

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 15104540638 in words is "fifteen billion, one hundred four million, five hundred forty thousand, six hundred thirty-eight".