1979982919 has 8 divisors (see below), whose sum is σ = 1985402880. Its totient is φ = 1974571800.

The previous prime is 1979982883. The next prime is 1979982941. The reversal of 1979982919 is 9192899791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1979982919 - 2¹⁷ = 1979851847 is a prime.

It is a super-3 number, since 3×1979982919³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1979988919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 739954 + ... + 742624.

It is an arithmetic number, because the mean of its divisors is an integer number (248175360).

Almost surely, 2^1979982919 is an apocalyptic number.

1979982919 is a deficient number, since it is larger than the sum of its proper divisors (5419961).

1979982919 is a wasteful number, since it uses less digits than its factorization.

1979982919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4421.

The product of its digits is 6613488, while the sum is 64.

The square root of 1979982919 is about 44496.9989886959. The cubic root of 1979982919 is about 1255.7036247353.

The spelling of 1979982919 in words is "one billion, nine hundred seventy-nine million, nine hundred eighty-two thousand, nine hundred nineteen".