77084009975 has 12 divisors (see below), whose sum is σ = 109239054384. Its totient is φ = 52857606720.

The previous prime is 77084009971. The next prime is 77084010007. The reversal of 77084009975 is 57990048077.

It is not a de Polignac number, because 77084009975 - 2² = 77084009971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77084009975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77084009971) 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, 220239854 + ... + 220240203.

It is an arithmetic number, because the mean of its divisors is an integer number (9103254532).

Almost surely, 2^77084009975 is an apocalyptic number.

77084009975 is a deficient number, since it is larger than the sum of its proper divisors (32155044409).

77084009975 is a wasteful number, since it uses less digits than its factorization.

77084009975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440480074 (or 440480069 counting only the distinct ones).

The product of its (nonzero) digits is 4445280, while the sum is 56.

The spelling of 77084009975 in words is "seventy-seven billion, eighty-four million, nine thousand, nine hundred seventy-five".