77022732285 has 48 divisors (see below), whose sum is σ = 140783198400. Its totient is φ = 38847382272.

The previous prime is 77022732271. The next prime is 77022732317. The reversal of 77022732285 is 58223722077.

It is not a de Polignac number, because 77022732285 - 2⁵ = 77022732253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 77022732285.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 401361 + ... + 561369.

It is an arithmetic number, because the mean of its divisors is an integer number (2932983300).

Almost surely, 2^77022732285 is an apocalyptic number.

It is an amenable number.

77022732285 is a deficient number, since it is larger than the sum of its proper divisors (63760466115).

77022732285 is a wasteful number, since it uses less digits than its factorization.

77022732285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160602 (or 160599 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 45.

The spelling of 77022732285 in words is "seventy-seven billion, twenty-two million, seven hundred thirty-two thousand, two hundred eighty-five".