26488945920 has 72 divisors (see below), whose sum is σ = 84599083296. Its totient is φ = 7063717888.

The previous prime is 26488945907. The next prime is 26488945921. The reversal of 26488945920 is 2954988462.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26488945921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3445242 + ... + 3452921.

It is an arithmetic number, because the mean of its divisors is an integer number (1174987268).

Almost surely, 2^26488945920 is an apocalyptic number.

26488945920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26488945920 is an abundant number, since it is smaller than the sum of its proper divisors (58110137376).

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

26488945920 is an equidigital number, since it uses as much as digits as its factorization.

26488945920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6898187 (or 6898173 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 57.

The spelling of 26488945920 in words is "twenty-six billion, four hundred eighty-eight million, nine hundred forty-five thousand, nine hundred twenty".