26664793772 has 12 divisors (see below), whose sum is σ = 46672736376. Its totient is φ = 13329726240.

The previous prime is 26664793721. The next prime is 26664793817. The reversal of 26664793772 is 27739746662.

It is a super-2 number, since 2×26664793772² (a number of 22 digits) contains 22 as substring.

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, 645113 + ... + 685200.

It is an arithmetic number, because the mean of its divisors is an integer number (3889394698).

Almost surely, 2^26664793772 is an apocalyptic number.

It is an amenable number.

26664793772 is a deficient number, since it is larger than the sum of its proper divisors (20007942604).

26664793772 is a wasteful number, since it uses less digits than its factorization.

26664793772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335328 (or 1335326 counting only the distinct ones).

The product of its digits is 32006016, while the sum is 59.

The spelling of 26664793772 in words is "twenty-six billion, six hundred sixty-four million, seven hundred ninety-three thousand, seven hundred seventy-two".