809326937465625 has 96 divisors (see below), whose sum is σ = 1350484883435520. Its totient is φ = 431099595000000.

The previous prime is 809326937465623. The next prime is 809326937465687. The reversal of 809326937465625 is 526564739623908.

It is not a de Polignac number, because 809326937465625 - 2¹ = 809326937465623 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (75).

It is not an unprimeable number, because it can be changed into a prime (809326937465623) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 25489793500 + ... + 25489825250.

It is an arithmetic number, because the mean of its divisors is an integer number (14067550869120).

Almost surely, 2^{809326937465625} is an apocalyptic number.

It is an amenable number.

809326937465625 is a deficient number, since it is larger than the sum of its proper divisors (541157945969895).

809326937465625 is a wasteful number, since it uses less digits than its factorization.

809326937465625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35105 (or 35085 counting only the distinct ones).

The product of its (nonzero) digits is 3527193600, while the sum is 75.

The spelling of 809326937465625 in words is "eight hundred nine trillion, three hundred twenty-six billion, nine hundred thirty-seven million, four hundred sixty-five thousand, six hundred twenty-five".