400427251768 has 16 divisors (see below), whose sum is σ = 754023422880. Its totient is φ = 199354339008.

The previous prime is 400427251759. The next prime is 400427251769. The reversal of 400427251768 is 867152724004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400427251769) 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, 107408880 + ... + 107412607.

It is an arithmetic number, because the mean of its divisors is an integer number (47126463930).

Almost surely, 2^400427251768 is an apocalyptic number.

It is an amenable number.

400427251768 is a deficient number, since it is larger than the sum of its proper divisors (353596171112).

400427251768 is a wasteful number, since it uses less digits than its factorization.

400427251768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214821726 (or 214821722 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 46.

The spelling of 400427251768 in words is "four hundred billion, four hundred twenty-seven million, two hundred fifty-one thousand, seven hundred sixty-eight".