76321032643 has 4 divisors (see below), whose sum is σ = 76407663528. Its totient is φ = 76234401760.

The previous prime is 76321032617. The next prime is 76321032701. The reversal of 76321032643 is 34623012367.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 76321032643 - 2⁵ = 76321032611 is a prime.

It is a super-3 number, since 3×76321032643³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76321032443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43314121 + ... + 43315882.

It is an arithmetic number, because the mean of its divisors is an integer number (19101915882).

Almost surely, 2^76321032643 is an apocalyptic number.

76321032643 is a deficient number, since it is larger than the sum of its proper divisors (86630885).

76321032643 is an equidigital number, since it uses as much as digits as its factorization.

76321032643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86630884.

The product of its (nonzero) digits is 108864, while the sum is 37.

The spelling of 76321032643 in words is "seventy-six billion, three hundred twenty-one million, thirty-two thousand, six hundred forty-three".