815007325673 has 4 divisors (see below), whose sum is σ = 815013759300. Its totient is φ = 815000892048.

The previous prime is 815007325603. The next prime is 815007325711. The reversal of 815007325673 is 376523700518.

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 462982263184 + 352025062489 = 680428^2 + 593317^2 .

It is a cyclic number.

It is not a de Polignac number, because 815007325673 - 2²⁴ = 814990548457 is a prime.

It is a super-3 number, since 3×815007325673³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (815007325603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3022898 + ... + 3281451.

It is an arithmetic number, because the mean of its divisors is an integer number (203753439825).

Almost surely, 2^815007325673 is an apocalyptic number.

It is an amenable number.

815007325673 is a deficient number, since it is larger than the sum of its proper divisors (6433627).

815007325673 is a wasteful number, since it uses less digits than its factorization.

815007325673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6433626.

The product of its (nonzero) digits is 1058400, while the sum is 47.

The spelling of 815007325673 in words is "eight hundred fifteen billion, seven million, three hundred twenty-five thousand, six hundred seventy-three".