15345498938 has 128 divisors (see below), whose sum is σ = 30596382720. Its totient is φ = 5596081920.

The previous prime is 15345498923. The next prime is 15345499003. The reversal of 15345498938 is 83989454351.

It is a happy number.

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 63 ways as a sum of consecutive naturals, for example, 48408356 + ... + 48408672.

It is an arithmetic number, because the mean of its divisors is an integer number (239034240).

Almost surely, 2^15345498938 is an apocalyptic number.

15345498938 is a deficient number, since it is larger than the sum of its proper divisors (15250883782).

15345498938 is a wasteful number, since it uses less digits than its factorization.

15345498938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612.

The product of its digits is 18662400, while the sum is 59.

The spelling of 15345498938 in words is "fifteen billion, three hundred forty-five million, four hundred ninety-eight thousand, nine hundred thirty-eight".