400051433951 has 16 divisors (see below), whose sum is σ = 453559407840. Its totient is φ = 349796413440.

The previous prime is 400051433923. The next prime is 400051433993. The reversal of 400051433951 is 159334150004.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400051433951 is a prime.

It is a super-2 number, since 2×400051433951² (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 (400051433851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1841771 + ... + 2047491.

It is an arithmetic number, because the mean of its divisors is an integer number (28347462990).

Almost surely, 2^400051433951 is an apocalyptic number.

400051433951 is a deficient number, since it is larger than the sum of its proper divisors (53507973889).

400051433951 is a wasteful number, since it uses less digits than its factorization.

400051433951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213626.

The product of its (nonzero) digits is 32400, while the sum is 35.

Adding to 400051433951 its reverse (159334150004), we get a palindrome (559385583955).

The spelling of 400051433951 in words is "four hundred billion, fifty-one million, four hundred thirty-three thousand, nine hundred fifty-one".