26157780960 has 96 divisors (see below), whose sum is σ = 82423111680. Its totient is φ = 6973198848.

The previous prime is 26157780959. The next prime is 26157780989. The reversal of 26157780960 is 6908775162.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1989769 + ... + 2002871.

It is an arithmetic number, because the mean of its divisors is an integer number (858574080).

Almost surely, 2^26157780960 is an apocalyptic number.

26157780960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26157780960 is an abundant number, since it is smaller than the sum of its proper divisors (56265330720).

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

26157780960 is a wasteful number, since it uses less digits than its factorization.

26157780960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17280 (or 17272 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 51.

The spelling of 26157780960 in words is "twenty-six billion, one hundred fifty-seven million, seven hundred eighty thousand, nine hundred sixty".