321042619987 has 8 divisors (see below), whose sum is σ = 323035320240. Its totient is φ = 319055950080.

The previous prime is 321042619973. The next prime is 321042619993. The reversal of 321042619987 is 789916240123.

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 321042619987 - 2¹⁵ = 321042587219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321042619967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1400758 + ... + 1613755.

It is an arithmetic number, because the mean of its divisors is an integer number (40379415030).

Almost surely, 2^321042619987 is an apocalyptic number.

321042619987 is a deficient number, since it is larger than the sum of its proper divisors (1992700253).

321042619987 is a wasteful number, since it uses less digits than its factorization.

321042619987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3015173.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 321042619987 in words is "three hundred twenty-one billion, forty-two million, six hundred nineteen thousand, nine hundred eighty-seven".