1979914515 has 24 divisors (see below), whose sum is σ = 3221985744. Its totient is φ = 1037937600.

The previous prime is 1979914501. The next prime is 1979914523. The reversal of 1979914515 is 5154199791.

It is not a de Polignac number, because 1979914515 - 2⁵ = 1979914483 is a prime.

It is a super-2 number, since 2×1979914515² = 7840122973415370450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1345230 + ... + 1346700.

It is an arithmetic number, because the mean of its divisors is an integer number (134249406).

Almost surely, 2^1979914515 is an apocalyptic number.

1979914515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1979914515 is a deficient number, since it is larger than the sum of its proper divisors (1242071229).

1979914515 is an frugal number, since it uses more digits than its factorization.

1979914515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3011 (or 1540 counting only the distinct ones).

The product of its digits is 510300, while the sum is 51.

The square root of 1979914515 is about 44496.2303459518. The cubic root of 1979914515 is about 1255.6891639809.

The spelling of 1979914515 in words is "one billion, nine hundred seventy-nine million, nine hundred fourteen thousand, five hundred fifteen".