77277451846 has 12 divisors (see below), whose sum is σ = 134841268188. Its totient is φ = 33118907892.

The previous prime is 77277451843. The next prime is 77277451861. The reversal of 77277451846 is 64815477277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77277451843) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 394272616 + ... + 394272811.

It is an arithmetic number, because the mean of its divisors is an integer number (11236772349).

Almost surely, 2^77277451846 is an apocalyptic number.

77277451846 is a deficient number, since it is larger than the sum of its proper divisors (57563816342).

77277451846 is a wasteful number, since it uses less digits than its factorization.

77277451846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788545443 (or 788545436 counting only the distinct ones).

The product of its digits is 18439680, while the sum is 58.

The spelling of 77277451846 in words is "seventy-seven billion, two hundred seventy-seven million, four hundred fifty-one thousand, eight hundred forty-six".