15002973138 has 16 divisors (see below), whose sum is σ = 30204662976. Its totient is φ = 4967871600.

The previous prime is 15002973137. The next prime is 15002973143. The reversal of 15002973138 is 83137920051.

It is a junction number, because it is equal to n+sod(n) for n = 15002973096 and 15002973105.

It is not an unprimeable number, because it can be changed into a prime (15002973137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8278881 + ... + 8280692.

It is an arithmetic number, because the mean of its divisors is an integer number (1887791436).

Almost surely, 2^15002973138 is an apocalyptic number.

15002973138 is an abundant number, since it is smaller than the sum of its proper divisors (15201689838).

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

15002973138 is a wasteful number, since it uses less digits than its factorization.

15002973138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16559729.

The product of its (nonzero) digits is 45360, while the sum is 39.

The spelling of 15002973138 in words is "fifteen billion, two million, nine hundred seventy-three thousand, one hundred thirty-eight".