406331159493 has 32 divisors (see below), whose sum is σ = 632412241920. Its totient is φ = 227224926720.

The previous prime is 406331159459. The next prime is 406331159551. The reversal of 406331159493 is 394951133604.

It is not a de Polignac number, because 406331159493 - 2²¹ = 406329062341 is a prime.

It is a super-2 number, since 2×406331159493² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406331159293) 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 31 ways as a sum of consecutive naturals, for example, 13565173 + ... + 13595093.

It is an arithmetic number, because the mean of its divisors is an integer number (19762882560).

Almost surely, 2^406331159493 is an apocalyptic number.

It is an amenable number.

406331159493 is a deficient number, since it is larger than the sum of its proper divisors (226081082427).

406331159493 is a wasteful number, since it uses less digits than its factorization.

406331159493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43737.

The product of its (nonzero) digits is 1049760, while the sum is 48.

The spelling of 406331159493 in words is "four hundred six billion, three hundred thirty-one million, one hundred fifty-nine thousand, four hundred ninety-three".