321896274252 has 192 divisors, whose sum is σ = 918916669440. Its totient is φ = 85607829504.

The previous prime is 321896274233. The next prime is 321896274263. The reversal of 321896274252 is 252472698123.

It is a super-2 number, since 2×321896274252² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 321896274195 and 321896274204.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 101639173 + ... + 101642339.

It is an arithmetic number, because the mean of its divisors is an integer number (4786024320).

Almost surely, 2^321896274252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321896274252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (459458334720).

321896274252 is an abundant number, since it is smaller than the sum of its proper divisors (597020395188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321896274252 is a wasteful number, since it uses less digits than its factorization.

321896274252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3960 (or 3958 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 51.

The spelling of 321896274252 in words is "three hundred twenty-one billion, eight hundred ninety-six million, two hundred seventy-four thousand, two hundred fifty-two".