77554733485 has 16 divisors (see below), whose sum is σ = 93220725312. Its totient is φ = 61940502400.

The previous prime is 77554733441. The next prime is 77554733537. The reversal of 77554733485 is 58433745577.

It is not a de Polignac number, because 77554733485 - 2³⁵ = 43194995117 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 12899130 + ... + 12905140.

It is an arithmetic number, because the mean of its divisors is an integer number (5826295332).

Almost surely, 2^77554733485 is an apocalyptic number.

It is an amenable number.

77554733485 is a deficient number, since it is larger than the sum of its proper divisors (15665991827).

77554733485 is a wasteful number, since it uses less digits than its factorization.

77554733485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9884.

The product of its digits is 49392000, while the sum is 58.

The spelling of 77554733485 in words is "seventy-seven billion, five hundred fifty-four million, seven hundred thirty-three thousand, four hundred eighty-five".