406631983707 has 54 divisors (see below), whose sum is σ = 643155787092. Its totient is φ = 256700915424.

The previous prime is 406631983679. The next prime is 406631983721. The reversal of 406631983707 is 707389136604.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 406631983707 - 2⁶ = 406631983643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (406631983727) 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 53 ways as a sum of consecutive naturals, for example, 188866543 + ... + 188868695.

Almost surely, 2^406631983707 is an apocalyptic number.

406631983707 is a deficient number, since it is larger than the sum of its proper divisors (236523803385).

406631983707 is an frugal number, since it uses more digits than its factorization.

406631983707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4359 (or 2175 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

The spelling of 406631983707 in words is "four hundred six billion, six hundred thirty-one million, nine hundred eighty-three thousand, seven hundred seven".