321487979707943 has 8 divisors (see below), whose sum is σ = 340671574620000. Its totient is φ = 302334666716160.

The previous prime is 321487979707883. The next prime is 321487979707969. The reversal of 321487979707943 is 349707979784123.

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 321487979707943 - 2²⁶ = 321487912599079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321487979701943) 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, 7570458203 + ... + 7570500668.

It is an arithmetic number, because the mean of its divisors is an integer number (42583946827500).

Almost surely, 2^{321487979707943} is an apocalyptic number.

321487979707943 is a deficient number, since it is larger than the sum of its proper divisors (19183594912057).

321487979707943 is a wasteful number, since it uses less digits than its factorization.

321487979707943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15140960137.

The product of its (nonzero) digits is 4032758016, while the sum is 80.

The spelling of 321487979707943 in words is "three hundred twenty-one trillion, four hundred eighty-seven billion, nine hundred seventy-nine million, seven hundred seven thousand, nine hundred forty-three".