26364234491 has 32 divisors (see below), whose sum is σ = 33636280320. Its totient is φ = 20116684800.

The previous prime is 26364234467. The next prime is 26364234497. The reversal of 26364234491 is 19443246362.

It is a de Polignac number, because none of the positive numbers 2^k-26364234491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26364234497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1440206 + ... + 1458396.

It is an arithmetic number, because the mean of its divisors is an integer number (1051133760).

Almost surely, 2^26364234491 is an apocalyptic number.

26364234491 is a deficient number, since it is larger than the sum of its proper divisors (7272045829).

26364234491 is a wasteful number, since it uses less digits than its factorization.

26364234491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18875.

The product of its digits is 746496, while the sum is 44.

The spelling of 26364234491 in words is "twenty-six billion, three hundred sixty-four million, two hundred thirty-four thousand, four hundred ninety-one".