76521132643 has 2 divisors, whose sum is σ = 76521132644. Its totient is φ = 76521132642.

The previous prime is 76521132637. The next prime is 76521132679. The reversal of 76521132643 is 34623112567.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76521132643 - 2²¹ = 76519035491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 76521132596 and 76521132605.

It is not a weakly prime, because it can be changed into another prime (76521138643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38260566321 + 38260566322.

It is an arithmetic number, because the mean of its divisors is an integer number (38260566322).

Almost surely, 2^76521132643 is an apocalyptic number.

76521132643 is a deficient number, since it is larger than the sum of its proper divisors (1).

76521132643 is an equidigital number, since it uses as much as digits as its factorization.

76521132643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 40.

The spelling of 76521132643 in words is "seventy-six billion, five hundred twenty-one million, one hundred thirty-two thousand, six hundred forty-three".