1958796772 has 12 divisors (see below), whose sum is σ = 3428696320. Its totient is φ = 979169256.

The previous prime is 1958796739. The next prime is 1958796779. The reversal of 1958796772 is 2776978591.

It is a self number, because there is not a number n which added to its sum of digits gives 1958796772.

It is not an unprimeable number, because it can be changed into a prime (1958796779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37272 + ... + 72847.

Almost surely, 2^1958796772 is an apocalyptic number.

It is an amenable number.

1958796772 is a deficient number, since it is larger than the sum of its proper divisors (1469899548).

1958796772 is a wasteful number, since it uses less digits than its factorization.

1958796772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114570 (or 114568 counting only the distinct ones).

The product of its digits is 13335840, while the sum is 61.

The square root of 1958796772 is about 44258.2960810739. The cubic root of 1958796772 is about 1251.2088086751.

The spelling of 1958796772 in words is "one billion, nine hundred fifty-eight million, seven hundred ninety-six thousand, seven hundred seventy-two".