26749421706 has 16 divisors (see below), whose sum is σ = 61141535424. Its totient is φ = 7642691904.

The previous prime is 26749421693. The next prime is 26749421707. The reversal of 26749421706 is 60712494762.

It is not an unprimeable number, because it can be changed into a prime (26749421707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318445455 + ... + 318445538.

It is an arithmetic number, because the mean of its divisors is an integer number (3821345964).

Almost surely, 2^26749421706 is an apocalyptic number.

26749421706 is an abundant number, since it is smaller than the sum of its proper divisors (34392113718).

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

26749421706 is a wasteful number, since it uses less digits than its factorization.

26749421706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636891005.

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 26749421706 in words is "twenty-six billion, seven hundred forty-nine million, four hundred twenty-one thousand, seven hundred six".