77283577168 has 40 divisors (see below), whose sum is σ = 173933312000. Its totient is φ = 32578554240.

The previous prime is 77283577159. The next prime is 77283577183. The reversal of 77283577168 is 86177538277.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5649168 + ... + 5662831.

It is an arithmetic number, because the mean of its divisors is an integer number (4348332800).

Almost surely, 2^77283577168 is an apocalyptic number.

It is an amenable number.

77283577168 is an abundant number, since it is smaller than the sum of its proper divisors (96649734832).

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

77283577168 is a wasteful number, since it uses less digits than its factorization.

77283577168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11312075 (or 11312069 counting only the distinct ones).

The product of its digits is 27659520, while the sum is 61.

The spelling of 77283577168 in words is "seventy-seven billion, two hundred eighty-three million, five hundred seventy-seven thousand, one hundred sixty-eight".