400131400455 has 48 divisors (see below), whose sum is σ = 705142073376. Its totient is φ = 209842133760.

The previous prime is 400131400423. The next prime is 400131400463. The reversal of 400131400455 is 554004131004.

It is a happy number.

400131400455 is a `hidden beast` number, since 40 + 0 + 131 + 40 + 0 + 455 = 666.

It is not a de Polignac number, because 400131400455 - 2⁵ = 400131400423 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9980029 + ... + 10020041.

It is an arithmetic number, because the mean of its divisors is an integer number (14690459862).

Almost surely, 2^400131400455 is an apocalyptic number.

400131400455 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

400131400455 is a deficient number, since it is larger than the sum of its proper divisors (305010672921).

400131400455 is a wasteful number, since it uses less digits than its factorization.

400131400455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43728 (or 43725 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 400131400455 its reverse (554004131004), we get a palindrome (954135531459).

The spelling of 400131400455 in words is "four hundred billion, one hundred thirty-one million, four hundred thousand, four hundred fifty-five".