325051231440 has 160 divisors (see below), whose sum is σ = 1085410279296. Its totient is φ = 79994972160.

The previous prime is 325051231433. The next prime is 325051231457. The reversal of 325051231440 is 44132150523.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 325051231398 and 325051231407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19401147 + ... + 19417893.

Almost surely, 2^325051231440 is an apocalyptic number.

325051231440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 325051231440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (542705139648).

325051231440 is an abundant number, since it is smaller than the sum of its proper divisors (760359047856).

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

325051231440 is a wasteful number, since it uses less digits than its factorization.

325051231440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22997 (or 22991 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 325051231440 its reverse (44132150523), we get a palindrome (369183381963).

The spelling of 325051231440 in words is "three hundred twenty-five billion, fifty-one million, two hundred thirty-one thousand, four hundred forty".