26409157220 has 24 divisors (see below), whose sum is σ = 55882588608. Its totient is φ = 10483023200.

The previous prime is 26409157163. The next prime is 26409157237. The reversal of 26409157220 is 2275190462.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5037296 + ... + 5042535.

It is an arithmetic number, because the mean of its divisors is an integer number (2328441192).

Almost surely, 2^26409157220 is an apocalyptic number.

26409157220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26409157220 is an abundant number, since it is smaller than the sum of its proper divisors (29473431388).

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

26409157220 is a wasteful number, since it uses less digits than its factorization.

26409157220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10079971 (or 10079969 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 26409157220 in words is "twenty-six billion, four hundred nine million, one hundred fifty-seven thousand, two hundred twenty".