321042663740 has 12 divisors (see below), whose sum is σ = 674189593896. Its totient is φ = 128417065488.

The previous prime is 321042663677. The next prime is 321042663743. The reversal of 321042663740 is 47366240123.

It is a junction number, because it is equal to n+sod(n) for n = 321042663694 and 321042663703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321042663743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8026066574 + ... + 8026066613.

It is an arithmetic number, because the mean of its divisors is an integer number (56182466158).

Almost surely, 2^321042663740 is an apocalyptic number.

It is an amenable number.

321042663740 is an abundant number, since it is smaller than the sum of its proper divisors (353146930156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321042663740 is a wasteful number, since it uses less digits than its factorization.

321042663740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16052133196 (or 16052133194 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 38.

The spelling of 321042663740 in words is "three hundred twenty-one billion, forty-two million, six hundred sixty-three thousand, seven hundred forty".