26295421621 has 16 divisors (see below), whose sum is σ = 32079144960. Its totient is φ = 21051923760.

The previous prime is 26295421601. The next prime is 26295421631. The reversal of 26295421621 is 12612459262.

It is not a de Polignac number, because 26295421621 - 2⁵ = 26295421589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26295421601) 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, 1382881 + ... + 1401766.

It is an arithmetic number, because the mean of its divisors is an integer number (2004946560).

Almost surely, 2^26295421621 is an apocalyptic number.

It is an amenable number.

26295421621 is a deficient number, since it is larger than the sum of its proper divisors (5783723339).

26295421621 is a wasteful number, since it uses less digits than its factorization.

26295421621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2784744.

The product of its digits is 103680, while the sum is 40.

The spelling of 26295421621 in words is "twenty-six billion, two hundred ninety-five million, four hundred twenty-one thousand, six hundred twenty-one".