323871380280 has 1536 divisors, whose sum is σ = 1397440512000. Its totient is φ = 63337697280.

The previous prime is 323871380279. The next prime is 323871380281. The reversal of 323871380280 is 82083178323.

323871380280 is a `hidden beast` number, since 3 + 238 + 7 + 138 + 0 + 280 = 666.

It is an interprime number because it is at equal distance from previous prime (323871380279) and next prime (323871380281).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323871380281) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 1809337231 + ... + 1809337409.

It is an arithmetic number, because the mean of its divisors is an integer number (909792000).

Almost surely, 2^323871380280 is an apocalyptic number.

323871380280 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 323871380280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (698720256000).

323871380280 is an abundant number, since it is smaller than the sum of its proper divisors (1073569131720).

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

323871380280 is a wasteful number, since it uses less digits than its factorization.

323871380280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 323871380280 in words is "three hundred twenty-three billion, eight hundred seventy-one million, three hundred eighty thousand, two hundred eighty".