76521132648 has 32 divisors (see below), whose sum is σ = 212558702400. Its totient is φ = 25507044144.

The previous prime is 76521132643. The next prime is 76521132679. The reversal of 76521132648 is 84623112567.

76521132648 is a `hidden beast` number, since 76 + 5 + 211 + 326 + 48 = 666.

It is a super-2 number, since 2×76521132648² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76521132643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177132036 + ... + 177132467.

It is an arithmetic number, because the mean of its divisors is an integer number (6642459450).

Almost surely, 2^76521132648 is an apocalyptic number.

It is an amenable number.

76521132648 is an abundant number, since it is smaller than the sum of its proper divisors (136037569752).

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

76521132648 is a wasteful number, since it uses less digits than its factorization.

76521132648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354264518 (or 354264508 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The spelling of 76521132648 in words is "seventy-six billion, five hundred twenty-one million, one hundred thirty-two thousand, six hundred forty-eight".