26454562557 has 16 divisors (see below), whose sum is σ = 35355414528. Its totient is φ = 17595088560.

The previous prime is 26454562531. The next prime is 26454562567. The reversal of 26454562557 is 75526545462.

It is not a de Polignac number, because 26454562557 - 2⁶ = 26454562493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26454562507) 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, 2832898 + ... + 2842220.

It is an arithmetic number, because the mean of its divisors is an integer number (2209713408).

Almost surely, 2^26454562557 is an apocalyptic number.

It is an amenable number.

26454562557 is a deficient number, since it is larger than the sum of its proper divisors (8900851971).

26454562557 is a wasteful number, since it uses less digits than its factorization.

26454562557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11440.

The product of its digits is 10080000, while the sum is 51.

The spelling of 26454562557 in words is "twenty-six billion, four hundred fifty-four million, five hundred sixty-two thousand, five hundred fifty-seven".