26975945412 has 72 divisors (see below), whose sum is σ = 73457204184. Its totient is φ = 8297726976.

The previous prime is 26975945411. The next prime is 26975945431. The reversal of 26975945412 is 21454957962.

It is a happy number.

26975945412 is a `hidden beast` number, since 2 + 6 + 9 + 7 + 5 + 94 + 541 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 373030596 + 26602914816 = 19314^2 + 163104^2 .

It is not an unprimeable number, because it can be changed into a prime (26975945411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1983628 + ... + 1997180.

It is an arithmetic number, because the mean of its divisors is an integer number (1020238947).

Almost surely, 2^26975945412 is an apocalyptic number.

It is an amenable number.

26975945412 is an abundant number, since it is smaller than the sum of its proper divisors (46481258772).

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

26975945412 is a wasteful number, since it uses less digits than its factorization.

26975945412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17829 (or 17824 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The spelling of 26975945412 in words is "twenty-six billion, nine hundred seventy-five million, nine hundred forty-five thousand, four hundred twelve".