406421576131 has 4 divisors (see below), whose sum is σ = 406437184072. Its totient is φ = 406405968192.

The previous prime is 406421576089. The next prime is 406421576137. The reversal of 406421576131 is 131675124604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406421576131 is a prime.

It is a super-2 number, since 2×406421576131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406421576137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7764846 + ... + 7817011.

It is an arithmetic number, because the mean of its divisors is an integer number (101609296018).

Almost surely, 2^406421576131 is an apocalyptic number.

406421576131 is a deficient number, since it is larger than the sum of its proper divisors (15607941).

406421576131 is a wasteful number, since it uses less digits than its factorization.

406421576131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15607940.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 406421576131 in words is "four hundred six billion, four hundred twenty-one million, five hundred seventy-six thousand, one hundred thirty-one".