813125269390 has 32 divisors (see below), whose sum is σ = 1760752465920. Its totient is φ = 264112869024.

The previous prime is 813125269387. The next prime is 813125269403. The reversal of 813125269390 is 93962521318.

It is a super-2 number, since 2×813125269390² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305684862 + ... + 305687521.

It is an arithmetic number, because the mean of its divisors is an integer number (55023514560).

Almost surely, 2^813125269390 is an apocalyptic number.

813125269390 is an abundant number, since it is smaller than the sum of its proper divisors (947627196530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

813125269390 is a wasteful number, since it uses less digits than its factorization.

813125269390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611372416.

The product of its (nonzero) digits is 699840, while the sum is 49.

The spelling of 813125269390 in words is "eight hundred thirteen billion, one hundred twenty-five million, two hundred sixty-nine thousand, three hundred ninety".