77008465812 has 48 divisors (see below), whose sum is σ = 193167959040. Its totient is φ = 23801045472.

The previous prime is 77008465811. The next prime is 77008465817. The reversal of 77008465812 is 21856480077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77008465811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3582438 + ... + 3603869.

It is an arithmetic number, because the mean of its divisors is an integer number (4024332480).

Almost surely, 2^77008465812 is an apocalyptic number.

It is an amenable number.

77008465812 is an abundant number, since it is smaller than the sum of its proper divisors (116159493228).

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

77008465812 is a wasteful number, since it uses less digits than its factorization.

77008465812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7186380 (or 7186378 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 48.

The spelling of 77008465812 in words is "seventy-seven billion, eight million, four hundred sixty-five thousand, eight hundred twelve".