7775494231680 has 512 divisors, whose sum is σ = 31484521152000. Its totient is φ = 1776562274304.

The previous prime is 7775494231657. The next prime is 7775494231717. The reversal of 7775494231680 is 861324945777.

7775494231680 is a `hidden beast` number, since 7 + 7 + 7 + 5 + 49 + 423 + 168 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 350410026 + ... + 350432214.

It is an arithmetic number, because the mean of its divisors is an integer number (61493205375).

It is a 1-persistent number, because it is pandigital, but 2⋅7775494231680 = 15550988463360 is not.

Almost surely, 2^{7775494231680} is an apocalyptic number.

7775494231680 is a gapful number since it is divisible by the number (70) 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 7775494231680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15742260576000).

7775494231680 is an abundant number, since it is smaller than the sum of its proper divisors (23709026920320).

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

7775494231680 is a wasteful number, since it uses less digits than its factorization.

7775494231680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25121 (or 25103 counting only the distinct ones).

The product of its (nonzero) digits is 71124480, while the sum is 63.

The spelling of 7775494231680 in words is "seven trillion, seven hundred seventy-five billion, four hundred ninety-four million, two hundred thirty-one thousand, six hundred eighty".