2517780968 has 16 divisors (see below), whose sum is σ = 4721590500. Its totient is φ = 1258690176.

The previous prime is 2517780919. The next prime is 2517780973. The reversal of 2517780968 is 8690877152.

It can be written as a sum of positive squares in 2 ways, for example, as 2486219044 + 31561924 = 49862^2 + 5618^2 .

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37598 + ... + 80306.

Almost surely, 2^2517780968 is an apocalyptic number.

It is an amenable number.

2517780968 is a deficient number, since it is larger than the sum of its proper divisors (2203809532).

2517780968 is a wasteful number, since it uses less digits than its factorization.

2517780968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50084 (or 50080 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 53.

The square root of 2517780968 is about 50177.4946365400. The cubic root of 2517780968 is about 1360.4188747235.

The spelling of 2517780968 in words is "two billion, five hundred seventeen million, seven hundred eighty thousand, nine hundred sixty-eight".