77255477060 has 24 divisors (see below), whose sum is σ = 170775265920. Its totient is φ = 29275759584.

The previous prime is 77255477027. The next prime is 77255477077. The reversal of 77255477060 is 6077455277.

It is a happy number.

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, 101651564 + ... + 101652323.

It is an arithmetic number, because the mean of its divisors is an integer number (7115636080).

Almost surely, 2^77255477060 is an apocalyptic number.

It is an amenable number.

77255477060 is an abundant number, since it is smaller than the sum of its proper divisors (93519788860).

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

77255477060 is a wasteful number, since it uses less digits than its factorization.

77255477060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203303915 (or 203303913 counting only the distinct ones).

The product of its (nonzero) digits is 2881200, while the sum is 50.

The spelling of 77255477060 in words is "seventy-seven billion, two hundred fifty-five million, four hundred seventy-seven thousand, sixty".