77399462148 has 24 divisors (see below), whose sum is σ = 180821454240. Its totient is φ = 25768005120.

The previous prime is 77399462143. The next prime is 77399462177. The reversal of 77399462148 is 84126499377.

It is a junction number, because it is equal to n+sod(n) for n = 77399462091 and 77399462100.

It is not an unprimeable number, because it can be changed into a prime (77399462143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3966813 + ... + 3986276.

It is an arithmetic number, because the mean of its divisors is an integer number (7534227260).

Almost surely, 2^77399462148 is an apocalyptic number.

It is an amenable number.

77399462148 is an abundant number, since it is smaller than the sum of its proper divisors (103421992092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77399462148 is a wasteful number, since it uses less digits than its factorization.

77399462148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7953907 (or 7953905 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 60.

The spelling of 77399462148 in words is "seventy-seven billion, three hundred ninety-nine million, four hundred sixty-two thousand, one hundred forty-eight".