26736434634 has 64 divisors (see below), whose sum is σ = 66232164096. Its totient is φ = 7006431744.

The previous prime is 26736434629. The next prime is 26736434653. The reversal of 26736434634 is 43643463762.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70227 + ... + 241670.

It is an arithmetic number, because the mean of its divisors is an integer number (1034877564).

Almost surely, 2^26736434634 is an apocalyptic number.

26736434634 is an abundant number, since it is smaller than the sum of its proper divisors (39495729462).

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

26736434634 is a wasteful number, since it uses less digits than its factorization.

26736434634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312079.

The product of its digits is 5225472, while the sum is 48.

The spelling of 26736434634 in words is "twenty-six billion, seven hundred thirty-six million, four hundred thirty-four thousand, six hundred thirty-four".