11672538738 has 16 divisors (see below), whose sum is σ = 26680088640. Its totient is φ = 3335011056.

The previous prime is 11672538707. The next prime is 11672538763. The reversal of 11672538738 is 83783527611.

It is a super-2 number, since 2×11672538738² (a number of 21 digits) contains 22 as substring.

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, 138958753 + ... + 138958836.

It is an arithmetic number, because the mean of its divisors is an integer number (1667505540).

Almost surely, 2^11672538738 is an apocalyptic number.

11672538738 is an abundant number, since it is smaller than the sum of its proper divisors (15007549902).

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

11672538738 is a wasteful number, since it uses less digits than its factorization.

11672538738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277917601.

The product of its digits is 1693440, while the sum is 51.

The spelling of 11672538738 in words is "eleven billion, six hundred seventy-two million, five hundred thirty-eight thousand, seven hundred thirty-eight".