1979972375 has 8 divisors (see below), whose sum is σ = 2471005680. Its totient is φ = 1583977800.

The previous prime is 1979972363. The next prime is 1979972381. The reversal of 1979972375 is 5732799791.

It is not a de Polignac number, because 1979972375 - 2⁴ = 1979972359 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7919765 + ... + 7920014.

It is an arithmetic number, because the mean of its divisors is an integer number (308875710).

Almost surely, 2^1979972375 is an apocalyptic number.

1979972375 is a deficient number, since it is larger than the sum of its proper divisors (491033305).

1979972375 is an equidigital number, since it uses as much as digits as its factorization.

1979972375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15839794 (or 15839784 counting only the distinct ones).

The product of its digits is 7501410, while the sum is 59.

The square root of 1979972375 is about 44496.8805086379. The cubic root of 1979972375 is about 1255.7013957325.

The spelling of 1979972375 in words is "one billion, nine hundred seventy-nine million, nine hundred seventy-two thousand, three hundred seventy-five".