1979117376 has 56 divisors (see below), whose sum is σ = 5405347584. Its totient is φ = 638423040.

The previous prime is 1979117359. The next prime is 1979117377. The reversal of 1979117376 is 6737119791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1979117377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160305 + ... + 172208.

It is an arithmetic number, because the mean of its divisors is an integer number (96524064).

Almost surely, 2^1979117376 is an apocalyptic number.

1979117376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1979117376 is an abundant number, since it is smaller than the sum of its proper divisors (3426230208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1979117376 is a wasteful number, since it uses less digits than its factorization.

1979117376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332559 (or 332549 counting only the distinct ones).

The product of its digits is 500094, while the sum is 51.

The square root of 1979117376 is about 44487.2720674127. The cubic root of 1979117376 is about 1255.5206225010.

The spelling of 1979117376 in words is "one billion, nine hundred seventy-nine million, one hundred seventeen thousand, three hundred seventy-six".