400360259999 has 6 divisors (see below), whose sum is σ = 465725200464. Its totient is φ = 343165937100.

The previous prime is 400360259987. The next prime is 400360260029. The reversal of 400360259999 is 999952063004.

It is not a de Polignac number, because 400360259999 - 2⁸ = 400360259743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400360259969) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4085308727 + ... + 4085308824.

It is an arithmetic number, because the mean of its divisors is an integer number (77620866744).

Almost surely, 2^400360259999 is an apocalyptic number.

400360259999 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

400360259999 is a deficient number, since it is larger than the sum of its proper divisors (65364940465).

400360259999 is an equidigital number, since it uses as much as digits as its factorization.

400360259999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8170617565 (or 8170617558 counting only the distinct ones).

The product of its (nonzero) digits is 4723920, while the sum is 56.

The spelling of 400360259999 in words is "four hundred billion, three hundred sixty million, two hundred fifty-nine thousand, nine hundred ninety-nine".