321740881425 has 54 divisors (see below), whose sum is σ = 602418631542. Its totient is φ = 164134417920.

The previous prime is 321740881421. The next prime is 321740881447. The reversal of 321740881425 is 524188047123.

321740881425 is a `hidden beast` number, since 3 + 217 + 4 + 0 + 8 + 8 + 1 + 425 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 54006041664 + 267734839761 = 232392^2 + 517431^2 .

It is not a de Polignac number, because 321740881425 - 2² = 321740881421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (321740881421) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 1232544 + ... + 1470593.

Almost surely, 2^321740881425 is an apocalyptic number.

It is an amenable number.

321740881425 is a deficient number, since it is larger than the sum of its proper divisors (280677750117).

321740881425 is a wasteful number, since it uses less digits than its factorization.

321740881425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2703199 (or 2703168 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 321740881425 in words is "three hundred twenty-one billion, seven hundred forty million, eight hundred eighty-one thousand, four hundred twenty-five".