76539453568 has 64 divisors (see below), whose sum is σ = 155332552320. Its totient is φ = 37558287360.

The previous prime is 76539453511. The next prime is 76539453593. The reversal of 76539453568 is 86535493567.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2307630 + ... + 2340562.

It is an arithmetic number, because the mean of its divisors is an integer number (2427071130).

Almost surely, 2^76539453568 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 76539453568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77666276160).

76539453568 is an abundant number, since it is smaller than the sum of its proper divisors (78793098752).

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

76539453568 is a wasteful number, since it uses less digits than its factorization.

76539453568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33285 (or 33273 counting only the distinct ones).

The product of its digits is 81648000, while the sum is 61.

The spelling of 76539453568 in words is "seventy-six billion, five hundred thirty-nine million, four hundred fifty-three thousand, five hundred sixty-eight".