877776487402320 has 640 divisors, whose sum is σ = 3334649603051520. Its totient is φ = 210455271290880.

The previous prime is 877776487402279. The next prime is 877776487402357. The reversal of 877776487402320 is 23204784677778.

877776487402320 is a `hidden beast` number, since 8 + 7 + 7 + 7 + 76 + 487 + 40 + 2 + 32 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1891515439 + ... + 1891979441.

It is an arithmetic number, because the mean of its divisors is an integer number (5210390004768).

Almost surely, 2^{877776487402320} is an apocalyptic number.

877776487402320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 877776487402320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1667324801525760).

877776487402320 is an abundant number, since it is smaller than the sum of its proper divisors (2456873115649200).

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

877776487402320 is a wasteful number, since it uses less digits than its factorization.

877776487402320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464912 (or 464900 counting only the distinct ones).

The product of its (nonzero) digits is 1239146496, while the sum is 72.

The spelling of 877776487402320 in words is "eight hundred seventy-seven trillion, seven hundred seventy-six billion, four hundred eighty-seven million, four hundred two thousand, three hundred twenty".