77542568548 has 24 divisors (see below), whose sum is σ = 138883635072. Its totient is φ = 37865064864.

The previous prime is 77542568539. The next prime is 77542568567. The reversal of 77542568548 is 84586524577.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353811 + ... + 529402.

It is an arithmetic number, because the mean of its divisors is an integer number (5786818128).

Almost surely, 2^77542568548 is an apocalyptic number.

It is an amenable number.

77542568548 is a deficient number, since it is larger than the sum of its proper divisors (61341066524).

77542568548 is a wasteful number, since it uses less digits than its factorization.

77542568548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883731 (or 883729 counting only the distinct ones).

The product of its digits is 75264000, while the sum is 61.

The spelling of 77542568548 in words is "seventy-seven billion, five hundred forty-two million, five hundred sixty-eight thousand, five hundred forty-eight".