15450977038 has 48 divisors (see below), whose sum is σ = 27850220064. Its totient is φ = 6405376320.

The previous prime is 15450977027. The next prime is 15450977041. The reversal of 15450977038 is 83077905451.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a junction number, because it is equal to n+sod(n) for n = 15450976982 and 15450977000.

It is a congruent number.

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, 614983 + ... + 639613.

It is an arithmetic number, because the mean of its divisors is an integer number (580212918).

Almost surely, 2^15450977038 is an apocalyptic number.

15450977038 is a deficient number, since it is larger than the sum of its proper divisors (12399243026).

15450977038 is a wasteful number, since it uses less digits than its factorization.

15450977038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24857 (or 24850 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 49.

The spelling of 15450977038 in words is "fifteen billion, four hundred fifty million, nine hundred seventy-seven thousand, thirty-eight".