77007343770 has 48 divisors (see below), whose sum is σ = 228821823360. Its totient is φ = 17601678432.

The previous prime is 77007343769. The next prime is 77007343783. The reversal of 77007343770 is 7734370077.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61116310 + ... + 61117569.

It is an arithmetic number, because the mean of its divisors is an integer number (4767121320).

Almost surely, 2^77007343770 is an apocalyptic number.

77007343770 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

77007343770 is an abundant number, since it is smaller than the sum of its proper divisors (151814479590).

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

77007343770 is a wasteful number, since it uses less digits than its factorization.

77007343770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122233899 (or 122233896 counting only the distinct ones).

The product of its (nonzero) digits is 605052, while the sum is 45.

The spelling of 77007343770 in words is "seventy-seven billion, seven million, three hundred forty-three thousand, seven hundred seventy".