78759912970 has 16 divisors (see below), whose sum is σ = 141811969608. Its totient is φ = 31494159360.

The previous prime is 78759912953. The next prime is 78759912983. The reversal of 78759912970 is 7921995787.

It can be written as a sum of positive squares in 4 ways, for example, as 78192377641 + 567535329 = 279629^2 + 23823^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1191951 + ... + 1256290.

Almost surely, 2^78759912970 is an apocalyptic number.

78759912970 is a deficient number, since it is larger than the sum of its proper divisors (63052056638).

78759912970 is a wasteful number, since it uses less digits than its factorization.

78759912970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451465.

The product of its (nonzero) digits is 20003760, while the sum is 64.

The spelling of 78759912970 in words is "seventy-eight billion, seven hundred fifty-nine million, nine hundred twelve thousand, nine hundred seventy".