328249376640 has 192 divisors, whose sum is σ = 1175467653360. Its totient is φ = 87533125632.

The previous prime is 328249376591. The next prime is 328249376641. The reversal of 328249376640 is 46673942823.

328249376640 is a `hidden beast` number, since 3 + 2 + 82 + 493 + 76 + 6 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328249376641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 899809 + ... + 1210848.

Almost surely, 2^328249376640 is an apocalyptic number.

328249376640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

328249376640 is an abundant number, since it is smaller than the sum of its proper divisors (847218276720).

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

328249376640 is an equidigital number, since it uses as much as digits as its factorization.

328249376640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110691 (or 2110667 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 54.

The spelling of 328249376640 in words is "three hundred twenty-eight billion, two hundred forty-nine million, three hundred seventy-six thousand, six hundred forty".