77285484992 has 28 divisors (see below), whose sum is σ = 153664752360. Its totient is φ = 38566807296.

The previous prime is 77285484973. The next prime is 77285485061. The reversal of 77285484992 is 29948458277.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1153658 + ... + 1218809.

It is an arithmetic number, because the mean of its divisors is an integer number (5488026870).

Almost surely, 2^77285484992 is an apocalyptic number.

It is an amenable number.

77285484992 is a deficient number, since it is larger than the sum of its proper divisors (76379267368).

77285484992 is a wasteful number, since it uses less digits than its factorization.

77285484992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2372988 (or 2372978 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 65.

The spelling of 77285484992 in words is "seventy-seven billion, two hundred eighty-five million, four hundred eighty-four thousand, nine hundred ninety-two".