406331212427 has 12 divisors (see below), whose sum is σ = 472719632616. Its totient is φ = 348248063520.

The previous prime is 406331212421. The next prime is 406331212429. The reversal of 406331212427 is 724212133604.

It is not a de Polignac number, because 406331212427 - 2⁶ = 406331212363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (406331212421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60152 + ... + 903482.

It is an arithmetic number, because the mean of its divisors is an integer number (39393302718).

Almost surely, 2^406331212427 is an apocalyptic number.

406331212427 is a deficient number, since it is larger than the sum of its proper divisors (66388420189).

406331212427 is an equidigital number, since it uses as much as digits as its factorization.

406331212427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853178 (or 853171 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The spelling of 406331212427 in words is "four hundred six billion, three hundred thirty-one million, two hundred twelve thousand, four hundred twenty-seven".