325685986377840 has 280 divisors, whose sum is σ = 1238520572185968. Its totient is φ = 78954178360320.

The previous prime is 325685986377833. The next prime is 325685986377901. The reversal of 325685986377840 is 48773689586523.

325685986377840 is a `hidden beast` number, since 3 + 2 + 5 + 6 + 85 + 98 + 6 + 377 + 84 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a self number, because there is not a number n which added to its sum of digits gives 325685986377840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 253197789 + ... + 254480828.

Almost surely, 2^{325685986377840} is an apocalyptic number.

325685986377840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

325685986377840 is an abundant number, since it is smaller than the sum of its proper divisors (912834585808128).

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

325685986377840 is a wasteful number, since it uses less digits than its factorization.

325685986377840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507678659 (or 507678638 counting only the distinct ones).

The product of its (nonzero) digits is 14631321600, while the sum is 81.

The spelling of 325685986377840 in words is "three hundred twenty-five trillion, six hundred eighty-five billion, nine hundred eighty-six million, three hundred seventy-seven thousand, eight hundred forty".