76644285343830 has 96 divisors (see below), whose sum is σ = 199397904267744. Its totient is φ = 20425888516608.

The previous prime is 76644285343793. The next prime is 76644285343837. The reversal of 76644285343830 is 3834358244667.

76644285343830 is a `hidden beast` number, since 7 + 6 + 6 + 4 + 4 + 285 + 343 + 8 + 3 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76644285343837) 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 47 ways as a sum of consecutive naturals, for example, 1205503002 + ... + 1205566578.

It is an arithmetic number, because the mean of its divisors is an integer number (2077061502789).

Almost surely, 2^{76644285343830} is an apocalyptic number.

76644285343830 is an abundant number, since it is smaller than the sum of its proper divisors (122753618923914).

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

76644285343830 is a wasteful number, since it uses less digits than its factorization.

76644285343830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71630 (or 71627 counting only the distinct ones).

The product of its (nonzero) digits is 278691840, while the sum is 63.

The spelling of 76644285343830 in words is "seventy-six trillion, six hundred forty-four billion, two hundred eighty-five million, three hundred forty-three thousand, eight hundred thirty".