77770400704443 has 12 divisors (see below), whose sum is σ = 112507052380320. Its totient is φ = 51767535738096.

The previous prime is 77770400704397. The next prime is 77770400704459. The reversal of 77770400704443 is 34440700407777.

It is not a de Polignac number, because 77770400704443 - 2¹⁰ = 77770400703419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77770400704443.

It is not an unprimeable number, because it can be changed into a prime (77770400704943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6616499203 + ... + 6616510956.

It is an arithmetic number, because the mean of its divisors is an integer number (9375587698360).

Almost surely, 2^{77770400704443} is an apocalyptic number.

77770400704443 is a deficient number, since it is larger than the sum of its proper divisors (34736651675877).

77770400704443 is a wasteful number, since it uses less digits than its factorization.

77770400704443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13233010818 (or 13233010815 counting only the distinct ones).

The product of its (nonzero) digits is 12907776, while the sum is 54.

The spelling of 77770400704443 in words is "seventy-seven trillion, seven hundred seventy billion, four hundred million, seven hundred four thousand, four hundred forty-three".