408839291956 has 6 divisors (see below), whose sum is σ = 715468760930. Its totient is φ = 204419645976.

The previous prime is 408839291929. The next prime is 408839291963. The reversal of 408839291956 is 659192938804.

It can be written as a sum of positive squares in only one way, i.e., 408788881956 + 50410000 = 639366^2 + 7100^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 51104911491 + ... + 51104911498.

Almost surely, 2^408839291956 is an apocalyptic number.

It is an amenable number.

408839291956 is a deficient number, since it is larger than the sum of its proper divisors (306629468974).

408839291956 is a wasteful number, since it uses less digits than its factorization.

408839291956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102209822993 (or 102209822991 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 64.

The spelling of 408839291956 in words is "four hundred eight billion, eight hundred thirty-nine million, two hundred ninety-one thousand, nine hundred fifty-six".