26220734900 has 18 divisors (see below), whose sum is σ = 56898994950. Its totient is φ = 10488293920.

The previous prime is 26220734899. The next prime is 26220734971. The reversal of 26220734900 is 943702262.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3017524624 + 23203210276 = 54932^2 + 152326^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 131103575 + ... + 131103774.

It is an arithmetic number, because the mean of its divisors is an integer number (3161055275).

Almost surely, 2^26220734900 is an apocalyptic number.

26220734900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26220734900 is an abundant number, since it is smaller than the sum of its proper divisors (30678260050).

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

26220734900 is a wasteful number, since it uses less digits than its factorization.

26220734900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262207363 (or 262207356 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The spelling of 26220734900 in words is "twenty-six billion, two hundred twenty million, seven hundred thirty-four thousand, nine hundred".