26078860660 has 24 divisors (see below), whose sum is σ = 54908614656. Its totient is φ = 10404304800.

The previous prime is 26078860657. The next prime is 26078860681. The reversal of 26078860660 is 6606887062.

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, 1694616 + ... + 1709935.

It is an arithmetic number, because the mean of its divisors is an integer number (2287858944).

Almost surely, 2^26078860660 is an apocalyptic number.

26078860660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26078860660 is an abundant number, since it is smaller than the sum of its proper divisors (28829753996).

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

26078860660 is a wasteful number, since it uses less digits than its factorization.

26078860660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3404943 (or 3404941 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 26078860660 in words is "twenty-six billion, seventy-eight million, eight hundred sixty thousand, six hundred sixty".