401374443317 has 4 divisors (see below), whose sum is σ = 401375721036. Its totient is φ = 401373165600.

The previous prime is 401374443287. The next prime is 401374443377. The reversal of 401374443317 is 713344473104.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 267041931121 + 134332512196 = 516761^2 + 366514^2 .

It is a cyclic number.

It is not a de Polignac number, because 401374443317 - 2⁸ = 401374443061 is a prime.

It is a super-2 number, since 2×401374443317² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401374443377) 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, 196043 + ... + 917159.

It is an arithmetic number, because the mean of its divisors is an integer number (100343930259).

Almost surely, 2^401374443317 is an apocalyptic number.

It is an amenable number.

401374443317 is a deficient number, since it is larger than the sum of its proper divisors (1277719).

401374443317 is an equidigital number, since it uses as much as digits as its factorization.

401374443317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277718.

The product of its (nonzero) digits is 338688, while the sum is 41.

The spelling of 401374443317 in words is "four hundred one billion, three hundred seventy-four million, four hundred forty-three thousand, three hundred seventeen".