406966243923 has 16 divisors (see below), whose sum is σ = 638378422560. Its totient is φ = 255351368448.

The previous prime is 406966243903. The next prime is 406966243961. The reversal of 406966243923 is 329342669604.

406966243923 is a `hidden beast` number, since 4 + 0 + 6 + 9 + 6 + 624 + 3 + 9 + 2 + 3 = 666.

It is not a de Polignac number, because 406966243923 - 2¹⁷ = 406966112851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 406966243923.

It is not an unprimeable number, because it can be changed into a prime (406966243903) 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, 443317890 + ... + 443318807.

It is an arithmetic number, because the mean of its divisors is an integer number (39898651410).

Almost surely, 2^406966243923 is an apocalyptic number.

406966243923 is a deficient number, since it is larger than the sum of its proper divisors (231412178637).

406966243923 is a wasteful number, since it uses less digits than its factorization.

406966243923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886636723 (or 886636717 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 54.

The spelling of 406966243923 in words is "four hundred six billion, nine hundred sixty-six million, two hundred forty-three thousand, nine hundred twenty-three".