1979836854951 has 16 divisors (see below), whose sum is σ = 2702137616640. Its totient is φ = 1288735593600.

The previous prime is 1979836854937. The next prime is 1979836854953. The reversal of 1979836854951 is 1594586389791.

It is not a de Polignac number, because 1979836854951 - 2⁹ = 1979836854439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1979836854953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2378331 + ... + 3100988.

It is an arithmetic number, because the mean of its divisors is an integer number (168883601040).

Almost surely, 2^{1979836854951} is an apocalyptic number.

1979836854951 is a deficient number, since it is larger than the sum of its proper divisors (722300761689).

1979836854951 is a wasteful number, since it uses less digits than its factorization.

1979836854951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5482166.

The product of its digits is 587865600, while the sum is 75.

The spelling of 1979836854951 in words is "one trillion, nine hundred seventy-nine billion, eight hundred thirty-six million, eight hundred fifty-four thousand, nine hundred fifty-one".