3258781323220 has 48 divisors (see below), whose sum is σ = 6876995207040. Its totient is φ = 1297126905984.

The previous prime is 3258781323211. The next prime is 3258781323229. The reversal of 3258781323220 is 223231878523.

It is an interprime number because it is at equal distance from previous prime (3258781323211) and next prime (3258781323229).

It is a super-2 number, since 2×3258781323220² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3258781323229) 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, 9034777 + ... + 9388543.

It is an arithmetic number, because the mean of its divisors is an integer number (143270733480).

Almost surely, 2^{3258781323220} is an apocalyptic number.

It is an amenable number.

3258781323220 is an abundant number, since it is smaller than the sum of its proper divisors (3618213883820).

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

3258781323220 is a wasteful number, since it uses less digits than its factorization.

3258781323220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356032 (or 356030 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 3258781323220 in words is "three trillion, two hundred fifty-eight billion, seven hundred eighty-one million, three hundred twenty-three thousand, two hundred twenty".