321873596378896 has 15 divisors (see below), whose sum is σ = 623630232025621. Its totient is φ = 160936762307776.

The previous prime is 321873596378801. The next prime is 321873596378911. The reversal of 321873596378896 is 698873695378123.

The square root of 321873596378896 is 17940836.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 248933797748496 + 72939798630400 = 15777636^2 + 8540480^2 .

It is a super-2 number, since 2×321873596378896² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 69520740 + ... + 74005948.

Almost surely, 2^{321873596378896} is an apocalyptic number.

321873596378896 is the 17940836-th square number.

It is an amenable number.

321873596378896 is a deficient number, since it is larger than the sum of its proper divisors (301756635646725).

321873596378896 is an frugal number, since it uses more digits than its factorization.

321873596378896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8970426 (or 4485211 counting only the distinct ones).

The product of its digits is 19752284160, while the sum is 85.

The spelling of 321873596378896 in words is "three hundred twenty-one trillion, eight hundred seventy-three billion, five hundred ninety-six million, three hundred seventy-eight thousand, eight hundred ninety-six".