26671564450 has 96 divisors (see below), whose sum is σ = 53052229440. Its totient is φ = 9974689920.

The previous prime is 26671564429. The next prime is 26671564453. The reversal of 26671564450 is 5446517662.

It is a super-2 number, since 2×26671564450² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26671564450.

It is not an unprimeable number, because it can be changed into a prime (26671564453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28464382 + ... + 28465318.

It is an arithmetic number, because the mean of its divisors is an integer number (552627390).

Almost surely, 2^26671564450 is an apocalyptic number.

26671564450 is a deficient number, since it is larger than the sum of its proper divisors (26380664990).

26671564450 is an equidigital number, since it uses as much as digits as its factorization.

26671564450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089 (or 1046 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 26671564450 in words is "twenty-six billion, six hundred seventy-one million, five hundred sixty-four thousand, four hundred fifty".