400861537313 has 8 divisors (see below), whose sum is σ = 413990403840. Its totient is φ = 387924333280.

The previous prime is 400861537303. The next prime is 400861537343. The reversal of 400861537313 is 313735168004.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400861537313 - 2²² = 400857343009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400861537303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47911373 + ... + 47919738.

It is an arithmetic number, because the mean of its divisors is an integer number (51748800480).

Almost surely, 2^400861537313 is an apocalyptic number.

It is an amenable number.

400861537313 is a deficient number, since it is larger than the sum of its proper divisors (13128866527).

400861537313 is an equidigital number, since it uses as much as digits as its factorization.

400861537313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95831247.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 400861537313 in words is "four hundred billion, eight hundred sixty-one million, five hundred thirty-seven thousand, three hundred thirteen".