76530515712 has 144 divisors (see below), whose sum is σ = 232941434880. Its totient is φ = 21850730496.

The previous prime is 76530515683. The next prime is 76530515771. The reversal of 76530515712 is 21751503567.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9452338 + ... + 9460430.

Almost surely, 2^76530515712 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 76530515712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116470717440).

76530515712 is an abundant number, since it is smaller than the sum of its proper divisors (156410919168).

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

76530515712 is a wasteful number, since it uses less digits than its factorization.

76530515712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9878 (or 9864 counting only the distinct ones).

The product of its (nonzero) digits is 220500, while the sum is 42.

The spelling of 76530515712 in words is "seventy-six billion, five hundred thirty million, five hundred fifteen thousand, seven hundred twelve".