409424748831 has 36 divisors (see below), whose sum is σ = 688998985272. Its totient is φ = 233598554784.

The previous prime is 409424748827. The next prime is 409424748871. The reversal of 409424748831 is 138847424904.

409424748831 is a `hidden beast` number, since 4 + 0 + 94 + 2 + 47 + 488 + 31 = 666.

It is not a de Polignac number, because 409424748831 - 2² = 409424748827 is a prime.

It is a super-2 number, since 2×409424748831² (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 (409424748871) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 422901 + ... + 998846.

It is an arithmetic number, because the mean of its divisors is an integer number (19138860702).

Almost surely, 2^409424748831 is an apocalyptic number.

409424748831 is a deficient number, since it is larger than the sum of its proper divisors (279574236441).

409424748831 is a wasteful number, since it uses less digits than its factorization.

409424748831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422420 (or 1422410 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 54.

The spelling of 409424748831 in words is "four hundred nine billion, four hundred twenty-four million, seven hundred forty-eight thousand, eight hundred thirty-one".