325623261441540 has 384 divisors, whose sum is σ = 986223837634560. Its totient is φ = 80023507200000.

The previous prime is 325623261441539. The next prime is 325623261441581. The reversal of 325623261441540 is 45144162326523.

It is a self number, because there is not a number n which added to its sum of digits gives 325623261441540.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6398419495 + ... + 6398470385.

It is an arithmetic number, because the mean of its divisors is an integer number (2568291243840).

Almost surely, 2^{325623261441540} is an apocalyptic number.

325623261441540 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 325623261441540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (493111918817280).

325623261441540 is an abundant number, since it is smaller than the sum of its proper divisors (660600576193020).

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

325623261441540 is a wasteful number, since it uses less digits than its factorization.

325623261441540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51995 (or 51993 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 48.

The spelling of 325623261441540 in words is "three hundred twenty-five trillion, six hundred twenty-three billion, two hundred sixty-one million, four hundred forty-one thousand, five hundred forty".