76853621624 has 64 divisors (see below), whose sum is σ = 164484613440. Its totient is φ = 33349662720.

The previous prime is 76853621617. The next prime is 76853621651. The reversal of 76853621624 is 42612635867.

It is a happy number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1715834 + ... + 1760054.

It is an arithmetic number, because the mean of its divisors is an integer number (2570072085).

Almost surely, 2^76853621624 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 76853621624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82242306720).

76853621624 is an abundant number, since it is smaller than the sum of its proper divisors (87630991816).

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

76853621624 is a wasteful number, since it uses less digits than its factorization.

76853621624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45240 (or 45236 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 50.

The spelling of 76853621624 in words is "seventy-six billion, eight hundred fifty-three million, six hundred twenty-one thousand, six hundred twenty-four".