26247379940 has 24 divisors (see below), whose sum is σ = 55138224960. Its totient is φ = 10495384928.

The previous prime is 26247379901. The next prime is 26247379957. The reversal of 26247379940 is 4997374262.

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, 162200 + ... + 280719.

It is an arithmetic number, because the mean of its divisors is an integer number (2297426040).

Almost surely, 2^26247379940 is an apocalyptic number.

26247379940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26247379940 is an abundant number, since it is smaller than the sum of its proper divisors (28890845020).

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

26247379940 is a wasteful number, since it uses less digits than its factorization.

26247379940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445891 (or 445889 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 53.

The spelling of 26247379940 in words is "twenty-six billion, two hundred forty-seven million, three hundred seventy-nine thousand, nine hundred forty".