329791445087 has 4 divisors (see below), whose sum is σ = 355160017800. Its totient is φ = 304422872376.

The previous prime is 329791445069. The next prime is 329791445129. The reversal of 329791445087 is 780544197923.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-329791445087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (329791445587) 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, 12684286337 + ... + 12684286362.

It is an arithmetic number, because the mean of its divisors is an integer number (88790004450).

Almost surely, 2^329791445087 is an apocalyptic number.

329791445087 is a deficient number, since it is larger than the sum of its proper divisors (25368572713).

329791445087 is a wasteful number, since it uses less digits than its factorization.

329791445087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25368572712.

The product of its (nonzero) digits is 15240960, while the sum is 59.

The spelling of 329791445087 in words is "three hundred twenty-nine billion, seven hundred ninety-one million, four hundred forty-five thousand, eighty-seven".