321960987597 has 16 divisors (see below), whose sum is σ = 436346714880. Its totient is φ = 211108411200.

The previous prime is 321960987577. The next prime is 321960987619. The reversal of 321960987597 is 795789069123.

It is not a de Polignac number, because 321960987597 - 2¹⁵ = 321960954829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321960987547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3369679 + ... + 3463907.

It is an arithmetic number, because the mean of its divisors is an integer number (27271669680).

Almost surely, 2^321960987597 is an apocalyptic number.

It is an amenable number.

321960987597 is a deficient number, since it is larger than the sum of its proper divisors (114385727283).

321960987597 is a wasteful number, since it uses less digits than its factorization.

321960987597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112964.

The product of its (nonzero) digits is 51438240, while the sum is 66.

The spelling of 321960987597 in words is "three hundred twenty-one billion, nine hundred sixty million, nine hundred eighty-seven thousand, five hundred ninety-seven".