79273246640 has 60 divisors (see below), whose sum is σ = 214401786336. Its totient is φ = 27179397504.

The previous prime is 79273246639. The next prime is 79273246651. The reversal of 79273246640 is 4664237297.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10107464 + ... + 10115303.

Almost surely, 2^79273246640 is an apocalyptic number.

79273246640 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

79273246640 is an abundant number, since it is smaller than the sum of its proper divisors (135128539696).

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

79273246640 is a wasteful number, since it uses less digits than its factorization.

79273246640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20222794 (or 20222781 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 50.

The spelling of 79273246640 in words is "seventy-nine billion, two hundred seventy-three million, two hundred forty-six thousand, six hundred forty".