26407242880 has 32 divisors (see below), whose sum is σ = 63129816540. Its totient is φ = 10562896896.

The previous prime is 26407242877. The next prime is 26407242913. The reversal of 26407242880 is 8824270462.

It can be written as a sum of positive squares in 2 ways, for example, as 25931305024 + 475937856 = 161032^2 + 21816^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20630019 + ... + 20631298.

Almost surely, 2^26407242880 is an apocalyptic number.

26407242880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26407242880 is an abundant number, since it is smaller than the sum of its proper divisors (36722573660).

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

26407242880 is an equidigital number, since it uses as much as digits as its factorization.

26407242880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41261336 (or 41261324 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 43.

The spelling of 26407242880 in words is "twenty-six billion, four hundred seven million, two hundred forty-two thousand, eight hundred eighty".