400190966457 has 16 divisors (see below), whose sum is σ = 540738918720. Its totient is φ = 263231336192.

The previous prime is 400190966429. The next prime is 400190966477. The reversal of 400190966457 is 754669091004.

It is a cyclic number.

It is not a de Polignac number, because 400190966457 - 2¹⁵ = 400190933689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400190966407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1480068 + ... + 1729445.

It is an arithmetic number, because the mean of its divisors is an integer number (33796182420).

Almost surely, 2^400190966457 is an apocalyptic number.

It is an amenable number.

400190966457 is a deficient number, since it is larger than the sum of its proper divisors (140547952263).

400190966457 is a wasteful number, since it uses less digits than its factorization.

400190966457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3210072.

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 400190966457 in words is "four hundred billion, one hundred ninety million, nine hundred sixty-six thousand, four hundred fifty-seven".