325308961820 has 24 divisors (see below), whose sum is σ = 696038422464. Its totient is φ = 127668422336.

The previous prime is 325308961793. The next prime is 325308961841. The reversal of 325308961820 is 28169803523.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153446564 + ... + 153448683.

It is an arithmetic number, because the mean of its divisors is an integer number (29001600936).

Almost surely, 2^325308961820 is an apocalyptic number.

It is an amenable number.

325308961820 is an abundant number, since it is smaller than the sum of its proper divisors (370729460644).

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

325308961820 is a wasteful number, since it uses less digits than its factorization.

325308961820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306895309 (or 306895307 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 325308961820 in words is "three hundred twenty-five billion, three hundred eight million, nine hundred sixty-one thousand, eight hundred twenty".