2915968779 has 48 divisors (see below), whose sum is σ = 4700666880. Its totient is φ = 1733970240.

The previous prime is 2915968747. The next prime is 2915968799. The reversal of 2915968779 is 9778695192.

It is not a de Polignac number, because 2915968779 - 2⁵ = 2915968747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2915968799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 188704 + ... + 203570.

It is an arithmetic number, because the mean of its divisors is an integer number (97930560).

Almost surely, 2^2915968779 is an apocalyptic number.

2915968779 is a deficient number, since it is larger than the sum of its proper divisors (1784698101).

2915968779 is a wasteful number, since it uses less digits than its factorization.

2915968779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14960 (or 14957 counting only the distinct ones).

The product of its digits is 17146080, while the sum is 63.

The square root of 2915968779 is about 53999.7109158929. The cubic root of 2915968779 is about 1428.6558479622.

The spelling of 2915968779 in words is "two billion, nine hundred fifteen million, nine hundred sixty-eight thousand, seven hundred seventy-nine".