328773624437 has 4 divisors (see below), whose sum is σ = 328781814240. Its totient is φ = 328765434636.

The previous prime is 328773624427. The next prime is 328773624451. The reversal of 328773624437 is 734426377823.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 328773624437 - 2²⁰ = 328772575861 is a prime.

It is a super-2 number, since 2×328773624437² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328773624427) 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, 4034387 + ... + 4115072.

It is an arithmetic number, because the mean of its divisors is an integer number (82195453560).

Almost surely, 2^328773624437 is an apocalyptic number.

It is an amenable number.

328773624437 is a deficient number, since it is larger than the sum of its proper divisors (8189803).

328773624437 is an equidigital number, since it uses as much as digits as its factorization.

328773624437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8189802.

The product of its digits is 28449792, while the sum is 56.

The spelling of 328773624437 in words is "three hundred twenty-eight billion, seven hundred seventy-three million, six hundred twenty-four thousand, four hundred thirty-seven".