76143253644 has 36 divisors (see below), whose sum is σ = 199110234960. Its totient is φ = 24505874400.

The previous prime is 76143253621. The next prime is 76143253649. The reversal of 76143253644 is 44635234167.

76143253644 is a `hidden beast` number, since 7 + 614 + 3 + 25 + 3 + 6 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 76143253644.

It is not an unprimeable number, because it can be changed into a prime (76143253649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36466032 + ... + 36468119.

It is an arithmetic number, because the mean of its divisors is an integer number (5530839860).

Almost surely, 2^76143253644 is an apocalyptic number.

It is an amenable number.

76143253644 is an abundant number, since it is smaller than the sum of its proper divisors (122966981316).

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

76143253644 is a wasteful number, since it uses less digits than its factorization.

76143253644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72934190 (or 72934185 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 45.

The spelling of 76143253644 in words is "seventy-six billion, one hundred forty-three million, two hundred fifty-three thousand, six hundred forty-four".