304506513613 has 4 divisors (see below), whose sum is σ = 304575582780. Its totient is φ = 304437444448.

The previous prime is 304506513587. The next prime is 304506513629. The reversal of 304506513613 is 316315605403.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 124240035529 + 180266478084 = 352477^2 + 424578^2 .

It is a cyclic number.

It is not a de Polignac number, because 304506513613 - 2²⁹ = 303969642701 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 (304506523613) 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, 34527970 + ... + 34536787.

It is an arithmetic number, because the mean of its divisors is an integer number (76143895695).

Almost surely, 2^304506513613 is an apocalyptic number.

It is an amenable number.

304506513613 is a deficient number, since it is larger than the sum of its proper divisors (69069167).

304506513613 is an equidigital number, since it uses as much as digits as its factorization.

304506513613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69069166.

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 304506513613 in words is "three hundred four billion, five hundred six million, five hundred thirteen thousand, six hundred thirteen".