26975139212 has 12 divisors (see below), whose sum is σ = 53950278480. Its totient is φ = 11560773936.

The previous prime is 26975139203. The next prime is 26975139227. The reversal of 26975139212 is 21293157962.

26975139212 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481698887 + ... + 481698942.

It is an arithmetic number, because the mean of its divisors is an integer number (4495856540).

Almost surely, 2^26975139212 is an apocalyptic number.

It is an amenable number.

26975139212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

26975139212 is a wasteful number, since it uses less digits than its factorization.

26975139212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963397840 (or 963397838 counting only the distinct ones).

The product of its digits is 408240, while the sum is 47.

The spelling of 26975139212 in words is "twenty-six billion, nine hundred seventy-five million, one hundred thirty-nine thousand, two hundred twelve".