77501521541148 has 12 divisors (see below), whose sum is σ = 180836883596040. Its totient is φ = 25833840513712.

The previous prime is 77501521541141. The next prime is 77501521541179. The reversal of 77501521541148 is 84114512510577.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 77501521541148.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77501521541141) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3229230064203 + ... + 3229230064226.

It is an arithmetic number, because the mean of its divisors is an integer number (15069740299670).

Almost surely, 2^{77501521541148} is an apocalyptic number.

It is an amenable number.

77501521541148 is an abundant number, since it is smaller than the sum of its proper divisors (103335362054892).

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

77501521541148 is a wasteful number, since it uses less digits than its factorization.

77501521541148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6458460128436 (or 6458460128434 counting only the distinct ones).

The product of its (nonzero) digits is 1568000, while the sum is 51.

The spelling of 77501521541148 in words is "seventy-seven trillion, five hundred one billion, five hundred twenty-one million, five hundred forty-one thousand, one hundred forty-eight".