472842815232581 has 2 divisors, whose sum is σ = 472842815232582. Its totient is φ = 472842815232580.

The previous prime is 472842815232553. The next prime is 472842815232649. The reversal of 472842815232581 is 185232518248274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 238214251824481 + 234628563408100 = 15434191^2 + 15317590^2 .

It is a cyclic number.

It is not a de Polignac number, because 472842815232581 - 2³⁴ = 472825635363397 is a prime.

It is a super-2 number, since 2×472842815232581² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (472842815262581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236421407616290 + 236421407616291.

It is an arithmetic number, because the mean of its divisors is an integer number (236421407616291).

Almost surely, 2^{472842815232581} is an apocalyptic number.

It is an amenable number.

472842815232581 is a deficient number, since it is larger than the sum of its proper divisors (1).

472842815232581 is an equidigital number, since it uses as much as digits as its factorization.

472842815232581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68812800, while the sum is 62.

The spelling of 472842815232581 in words is "four hundred seventy-two trillion, eight hundred forty-two billion, eight hundred fifteen million, two hundred thirty-two thousand, five hundred eighty-one".