21074712796 has 24 divisors (see below), whose sum is σ = 39064497696. Its totient is φ = 9913881600.

The previous prime is 21074712787. The next prime is 21074712817. The reversal of 21074712796 is 69721747012.

It is a super-2 number, since 2×21074712796² (a number of 21 digits) contains 22 as substring.

It is a congruent 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, 135145 + ... + 245791.

It is an arithmetic number, because the mean of its divisors is an integer number (1627687404).

Almost surely, 2^21074712796 is an apocalyptic number.

It is an amenable number.

21074712796 is a deficient number, since it is larger than the sum of its proper divisors (17989784900).

21074712796 is a wasteful number, since it uses less digits than its factorization.

21074712796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113469 (or 113467 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 46.

The spelling of 21074712796 in words is "twenty-one billion, seventy-four million, seven hundred twelve thousand, seven hundred ninety-six".