77848593892 has 12 divisors (see below), whose sum is σ = 136254783420. Its totient is φ = 38918655776.

The previous prime is 77848593871. The next prime is 77848593937. The reversal of 77848593892 is 29839584877.

It can be written as a sum of positive squares in 2 ways, for example, as 20145828096 + 57702765796 = 141936^2 + 240214^2 .

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, 1379167 + ... + 1434502.

It is an arithmetic number, because the mean of its divisors is an integer number (11354565285).

Almost surely, 2^77848593892 is an apocalyptic number.

It is an amenable number.

77848593892 is a deficient number, since it is larger than the sum of its proper divisors (58406189528).

77848593892 is a wasteful number, since it uses less digits than its factorization.

77848593892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2820590 (or 2820588 counting only the distinct ones).

The product of its digits is 243855360, while the sum is 70.

The spelling of 77848593892 in words is "seventy-seven billion, eight hundred forty-eight million, five hundred ninety-three thousand, eight hundred ninety-two".