1979696271 has 16 divisors (see below), whose sum is σ = 3058006784. Its totient is φ = 1115757504.

The previous prime is 1979696249. The next prime is 1979696287. The reversal of 1979696271 is 1726969791.

It is not a de Polignac number, because 1979696271 - 2¹⁹ = 1979171983 is a prime.

It is a super-2 number, since 2×1979696271² = 7838394650822610882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1979696231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 644161 + ... + 647226.

It is an arithmetic number, because the mean of its divisors is an integer number (191125424).

Almost surely, 2^1979696271 is an apocalyptic number.

1979696271 is a deficient number, since it is larger than the sum of its proper divisors (1078310513).

1979696271 is a wasteful number, since it uses less digits than its factorization.

1979696271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291470.

The product of its digits is 2571912, while the sum is 57.

The square root of 1979696271 is about 44493.7778908467. Note that the first 3 decimals coincide. The cubic root of 1979696271 is about 1255.6430244980.

The spelling of 1979696271 in words is "one billion, nine hundred seventy-nine million, six hundred ninety-six thousand, two hundred seventy-one".