77488747022 has 8 divisors (see below), whose sum is σ = 116239821336. Its totient is φ = 38742139912.

The previous prime is 77488747009. The next prime is 77488747087. The reversal of 77488747022 is 22074788477.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1073093 + ... + 1143024.

It is an arithmetic number, because the mean of its divisors is an integer number (14529977667).

Almost surely, 2^77488747022 is an apocalyptic number.

77488747022 is a deficient number, since it is larger than the sum of its proper divisors (38751074314).

77488747022 is a wasteful number, since it uses less digits than its factorization.

77488747022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2233602.

The product of its (nonzero) digits is 9834496, while the sum is 56.

The spelling of 77488747022 in words is "seventy-seven billion, four hundred eighty-eight million, seven hundred forty-seven thousand, twenty-two".