1979914516 has 6 divisors (see below), whose sum is σ = 3464850410. Its totient is φ = 989957256.

The previous prime is 1979914501. The next prime is 1979914523. The reversal of 1979914516 is 6154199791.

It can be written as a sum of positive squares in only one way, i.e., 1077152400 + 902762116 = 32820^2 + 30046^2 .

It is a super-2 number, since 2×1979914516² = 7840122981335028512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247489311 + ... + 247489318.

Almost surely, 2^1979914516 is an apocalyptic number.

It is an amenable number.

1979914516 is a deficient number, since it is larger than the sum of its proper divisors (1484935894).

1979914516 is a wasteful number, since it uses less digits than its factorization.

1979914516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494978633 (or 494978631 counting only the distinct ones).

The product of its digits is 612360, while the sum is 52.

The square root of 1979914516 is about 44496.2303571887. The cubic root of 1979914516 is about 1255.6891641923.

The spelling of 1979914516 in words is "one billion, nine hundred seventy-nine million, nine hundred fourteen thousand, five hundred sixteen".