77700685260548 has 24 divisors (see below), whose sum is σ = 155560430320512. Its totient is φ = 33266209440384.

The previous prime is 77700685260487. The next prime is 77700685260553. The reversal of 77700685260548 is 84506258600777.

It is a super-3 number, since 3×77700685260548³ (a number of 43 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1420148936 + ... + 1420203647.

It is an arithmetic number, because the mean of its divisors is an integer number (6481684596688).

Almost surely, 2^{77700685260548} is an apocalyptic number.

It is an amenable number.

77700685260548 is an abundant number, since it is smaller than the sum of its proper divisors (77859745059964).

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

77700685260548 is a wasteful number, since it uses less digits than its factorization.

77700685260548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2840353571 (or 2840353569 counting only the distinct ones).

The product of its (nonzero) digits is 158054400, while the sum is 65.

The spelling of 77700685260548 in words is "seventy-seven trillion, seven hundred billion, six hundred eighty-five million, two hundred sixty thousand, five hundred forty-eight".