26620473732 has 12 divisors (see below), whose sum is σ = 62114438736. Its totient is φ = 8873491240.

The previous prime is 26620473647. The next prime is 26620473829. The reversal of 26620473732 is 23737402662.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×26620473732² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

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, 1109186394 + ... + 1109186417.

It is an arithmetic number, because the mean of its divisors is an integer number (5176203228).

Almost surely, 2^26620473732 is an apocalyptic number.

It is an amenable number.

26620473732 is an abundant number, since it is smaller than the sum of its proper divisors (35493965004).

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

26620473732 is a wasteful number, since it uses less digits than its factorization.

26620473732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2218372818 (or 2218372816 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 42.

The spelling of 26620473732 in words is "twenty-six billion, six hundred twenty million, four hundred seventy-three thousand, seven hundred thirty-two".