1507873665138 has 16 divisors (see below), whose sum is σ = 3015768005856. Its totient is φ = 502621109120.

The previous prime is 1507873665049. The next prime is 1507873665161. The reversal of 1507873665138 is 8315663787051.

It is a happy 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, 184258 + ... + 1746338.

It is an arithmetic number, because the mean of its divisors is an integer number (188485500366).

Almost surely, 2^{1507873665138} is an apocalyptic number.

1507873665138 is an abundant number, since it is smaller than the sum of its proper divisors (1507894340718).

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

1507873665138 is a wasteful number, since it uses less digits than its factorization.

1507873665138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722969.

The product of its (nonzero) digits is 25401600, while the sum is 60.

The spelling of 1507873665138 in words is "one trillion, five hundred seven billion, eight hundred seventy-three million, six hundred sixty-five thousand, one hundred thirty-eight".