26830257020 has 24 divisors (see below), whose sum is σ = 64392617184. Its totient is φ = 9198945216.

The previous prime is 26830257017. The next prime is 26830257031. The reversal of 26830257020 is 2075203862.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

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, 95822207 + ... + 95822486.

It is an arithmetic number, because the mean of its divisors is an integer number (2683025716).

Almost surely, 2^26830257020 is an apocalyptic number.

26830257020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26830257020 is an abundant number, since it is smaller than the sum of its proper divisors (37562360164).

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

26830257020 is a wasteful number, since it uses less digits than its factorization.

26830257020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191644709 (or 191644707 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 26830257020 in words is "twenty-six billion, eight hundred thirty million, two hundred fifty-seven thousand, twenty".