77552345180 has 24 divisors (see below), whose sum is σ = 162872968272. Its totient is φ = 31018453632.

The previous prime is 77552345179. The next prime is 77552345183. The reversal of 77552345180 is 8154325577.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77552345183) by changing a digit.

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, 111899 + ... + 409421.

It is an arithmetic number, because the mean of its divisors is an integer number (6786373678).

Almost surely, 2^77552345180 is an apocalyptic number.

It is an amenable number.

77552345180 is an abundant number, since it is smaller than the sum of its proper divisors (85320623092).

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

77552345180 is a wasteful number, since it uses less digits than its factorization.

77552345180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310565 (or 310563 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 47.

The spelling of 77552345180 in words is "seventy-seven billion, five hundred fifty-two million, three hundred forty-five thousand, one hundred eighty".