577461872180028 has 96 divisors (see below), whose sum is σ = 1517541302495232. Its totient is φ = 169318866124800.

The previous prime is 577461872180021. The next prime is 577461872180029. The reversal of 577461872180028 is 820081278164775.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (577461872180021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17634300 + ... + 38286972.

It is an arithmetic number, because the mean of its divisors is an integer number (15807721900992).

Almost surely, 2^{577461872180028} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 577461872180028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (758770651247616).

577461872180028 is an abundant number, since it is smaller than the sum of its proper divisors (940079430315204).

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

577461872180028 is a wasteful number, since it uses less digits than its factorization.

577461872180028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20659555 (or 20659553 counting only the distinct ones).

The product of its (nonzero) digits is 84295680, while the sum is 66.

The spelling of 577461872180028 in words is "five hundred seventy-seven trillion, four hundred sixty-one billion, eight hundred seventy-two million, one hundred eighty thousand, twenty-eight".