321431453885 has 8 divisors (see below), whose sum is σ = 386059396920. Its totient is φ = 256917394944.

The previous prime is 321431453831. The next prime is 321431453909. The reversal of 321431453885 is 588354134123.

It can be written as a sum of positive squares in 4 ways, for example, as 12781206916 + 308650246969 = 113054^2 + 555563^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 321431453885 - 2⁶ = 321431453821 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28464812 + ... + 28476101.

It is an arithmetic number, because the mean of its divisors is an integer number (48257424615).

Almost surely, 2^321431453885 is an apocalyptic number.

It is an amenable number.

321431453885 is a deficient number, since it is larger than the sum of its proper divisors (64627943035).

321431453885 is a wasteful number, since it uses less digits than its factorization.

321431453885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56942047.

The product of its digits is 1382400, while the sum is 47.

The spelling of 321431453885 in words is "three hundred twenty-one billion, four hundred thirty-one million, four hundred fifty-three thousand, eight hundred eighty-five".