26922639940 has 48 divisors (see below), whose sum is σ = 65086019712. Its totient is φ = 9163236096.

The previous prime is 26922639937. The next prime is 26922639941. The reversal of 26922639940 is 4993622962.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (26922639941) 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, 682662 + ... + 721021.

It is an arithmetic number, because the mean of its divisors is an integer number (1355958744).

Almost surely, 2^26922639940 is an apocalyptic number.

26922639940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26922639940 is an abundant number, since it is smaller than the sum of its proper divisors (38163379772).

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

26922639940 is a wasteful number, since it uses less digits than its factorization.

26922639940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403836 (or 1403834 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 52.

The spelling of 26922639940 in words is "twenty-six billion, nine hundred twenty-two million, six hundred thirty-nine thousand, nine hundred forty".