408047245831 has 4 divisors (see below), whose sum is σ = 408421259064. Its totient is φ = 407673232600.

The previous prime is 408047245799. The next prime is 408047245843. The reversal of 408047245831 is 138542740804.

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

It is a cyclic number.

It is not a de Polignac number, because 408047245831 - 2⁵ = 408047245799 is a prime.

It is a super-2 number, since 2×408047245831² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408047245031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187004980 + ... + 187007161.

It is an arithmetic number, because the mean of its divisors is an integer number (102105314766).

Almost surely, 2^408047245831 is an apocalyptic number.

408047245831 is a deficient number, since it is larger than the sum of its proper divisors (374013233).

408047245831 is a wasteful number, since it uses less digits than its factorization.

408047245831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374013232.

The product of its (nonzero) digits is 860160, while the sum is 46.

The spelling of 408047245831 in words is "four hundred eight billion, forty-seven million, two hundred forty-five thousand, eight hundred thirty-one".