1979016312 has 96 divisors (see below), whose sum is σ = 6198066000. Its totient is φ = 521934336.

The previous prime is 1979016293. The next prime is 1979016313. The reversal of 1979016312 is 2136109791.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1979016313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49437 + ... + 80012.

Almost surely, 2^1979016312 is an apocalyptic number.

1979016312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1979016312 is an abundant number, since it is smaller than the sum of its proper divisors (4219049688).

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

1979016312 is a wasteful number, since it uses less digits than its factorization.

1979016312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129485 (or 129474 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 1979016312 is about 44486.1361774654. The cubic root of 1979016312 is about 1255.4992510052.

The spelling of 1979016312 in words is "one billion, nine hundred seventy-nine million, sixteen thousand, three hundred twelve".