79477137950 has 48 divisors (see below), whose sum is σ = 170844020640. Its totient is φ = 26943121920.

The previous prime is 79477137947. The next prime is 79477137977. The reversal of 79477137950 is 5973177497.

It is a happy number.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 79477137950.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1244567 + ... + 1306866.

It is an arithmetic number, because the mean of its divisors is an integer number (3559250430).

Almost surely, 2^79477137950 is an apocalyptic number.

79477137950 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

79477137950 is an abundant number, since it is smaller than the sum of its proper divisors (91366882690).

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

79477137950 is a wasteful number, since it uses less digits than its factorization.

79477137950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551541 (or 2551536 counting only the distinct ones).

The product of its (nonzero) digits is 11668860, while the sum is 59.

The spelling of 79477137950 in words is "seventy-nine billion, four hundred seventy-seven million, one hundred thirty-seven thousand, nine hundred fifty".