77077711040 has 56 divisors (see below), whose sum is σ = 200226881232. Its totient is φ = 28028257280.

The previous prime is 77077711031. The next prime is 77077711079. The reversal of 77077711040 is 4011777077.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 10945019 + ... + 10952058.

It is an arithmetic number, because the mean of its divisors is an integer number (3575480022).

Almost surely, 2^77077711040 is an apocalyptic number.

It is an amenable number.

77077711040 is an abundant number, since it is smaller than the sum of its proper divisors (123149170192).

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

77077711040 is a wasteful number, since it uses less digits than its factorization.

77077711040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21897105 (or 21897095 counting only the distinct ones).

The product of its (nonzero) digits is 67228, while the sum is 41.

The spelling of 77077711040 in words is "seventy-seven billion, seventy-seven million, seven hundred eleven thousand, forty".