26649806972 has 48 divisors (see below), whose sum is σ = 48179308800. Its totient is φ = 12890275200.

The previous prime is 26649806947. The next prime is 26649806993. The reversal of 26649806972 is 27960894662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10801283 + ... + 10803749.

It is an arithmetic number, because the mean of its divisors is an integer number (1003735600).

Almost surely, 2^26649806972 is an apocalyptic number.

It is an amenable number.

26649806972 is a deficient number, since it is larger than the sum of its proper divisors (21529501828).

26649806972 is a wasteful number, since it uses less digits than its factorization.

26649806972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3042 (or 3040 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 59.

The spelling of 26649806972 in words is "twenty-six billion, six hundred forty-nine million, eight hundred six thousand, nine hundred seventy-two".