1979724590365 has 16 divisors (see below), whose sum is σ = 2509878286080. Its totient is φ = 1496631115840.

The previous prime is 1979724590359. The next prime is 1979724590383. The reversal of 1979724590365 is 5630954279791.

It is not a de Polignac number, because 1979724590365 - 2³ = 1979724590357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1979724590365.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145240771 + ... + 145254400.

It is an arithmetic number, because the mean of its divisors is an integer number (156867392880).

Almost surely, 2^{1979724590365} is an apocalyptic number.

It is an amenable number.

1979724590365 is a deficient number, since it is larger than the sum of its proper divisors (530153695715).

1979724590365 is a wasteful number, since it uses less digits than its factorization.

1979724590365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290495252.

The product of its (nonzero) digits is 128595600, while the sum is 67.

The spelling of 1979724590365 in words is "one trillion, nine hundred seventy-nine billion, seven hundred twenty-four million, five hundred ninety thousand, three hundred sixty-five".