26516536494 has 96 divisors (see below), whose sum is σ = 62416521216. Its totient is φ = 7487665920.

The previous prime is 26516536441. The next prime is 26516536511. The reversal of 26516536494 is 49463561562.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9151654 + ... + 9154550.

It is an arithmetic number, because the mean of its divisors is an integer number (650172096).

Almost surely, 2^26516536494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26516536494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31208260608).

26516536494 is an abundant number, since it is smaller than the sum of its proper divisors (35899984722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26516536494 is a wasteful number, since it uses less digits than its factorization.

26516536494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3270 (or 3263 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 51.

The spelling of 26516536494 in words is "twenty-six billion, five hundred sixteen million, five hundred thirty-six thousand, four hundred ninety-four".