2078379120979 has 16 divisors (see below), whose sum is σ = 2459967436800. Its totient is φ = 1718098581024.

The previous prime is 2078379120971. The next prime is 2078379121033. The reversal of 2078379120979 is 9790219738702.

It is not a de Polignac number, because 2078379120979 - 2³ = 2078379120971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2078379120979.

It is not an unprimeable number, because it can be changed into a prime (2078379120971) 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, 5591259 + ... + 5951380.

It is an arithmetic number, because the mean of its divisors is an integer number (153747964800).

Almost surely, 2^{2078379120979} is an apocalyptic number.

2078379120979 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2078379120979 is a deficient number, since it is larger than the sum of its proper divisors (381588315821).

2078379120979 is a wasteful number, since it uses less digits than its factorization.

2078379120979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11543562.

The product of its (nonzero) digits is 24004512, while the sum is 64.

The spelling of 2078379120979 in words is "two trillion, seventy-eight billion, three hundred seventy-nine million, one hundred twenty thousand, nine hundred seventy-nine".