26671564451 has 16 divisors (see below), whose sum is σ = 32903884800. Its totient is φ = 21113318688.

The previous prime is 26671564429. The next prime is 26671564453. The reversal of 26671564451 is 15446517662.

It is not a de Polignac number, because 26671564451 - 2¹⁴ = 26671548067 is a prime.

It is a super-2 number, since 2×26671564451² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26671564396 and 26671564405.

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 15 ways as a sum of consecutive naturals, for example, 2851571 + ... + 2860908.

It is an arithmetic number, because the mean of its divisors is an integer number (2056492800).

Almost surely, 2^26671564451 is an apocalyptic number.

26671564451 is a deficient number, since it is larger than the sum of its proper divisors (6232320349).

26671564451 is a wasteful number, since it uses less digits than its factorization.

26671564451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5712538.

The product of its digits is 1209600, while the sum is 47.

The spelling of 26671564451 in words is "twenty-six billion, six hundred seventy-one million, five hundred sixty-four thousand, four hundred fifty-one".