7974792050 has 12 divisors (see below), whose sum is σ = 14833113306. Its totient is φ = 3189916800.

The previous prime is 7974792019. The next prime is 7974792073. The reversal of 7974792050 is 502974797.

It can be written as a sum of positive squares in 3 ways, for example, as 4505228641 + 3469563409 = 67121^2 + 58903^2 .

It is a Harshad number since it is a multiple of its sum of digits (50), and also a Moran number because the ratio is a prime number: 159495841 = 7974792050 / (7 + 9 + 7 + 4 + 7 + 9 + 2 + 0 + 5 + 0).

It is a self number, because there is not a number n which added to its sum of digits gives 7974792050.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79747871 + ... + 79747970.

Almost surely, 2^7974792050 is an apocalyptic number.

7974792050 is a deficient number, since it is larger than the sum of its proper divisors (6858321256).

7974792050 is a wasteful number, since it uses less digits than its factorization.

7974792050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159495853 (or 159495848 counting only the distinct ones).

The product of its (nonzero) digits is 1111320, while the sum is 50.

The square root of 7974792050 is about 89301.6911933923. The cubic root of 7974792050 is about 1997.8971272380.

The spelling of 7974792050 in words is "seven billion, nine hundred seventy-four million, seven hundred ninety-two thousand, fifty".