3869321280 has 448 divisors, whose sum is σ = 14220748800. Its totient is φ = 882196480.

The previous prime is 3869321263. The next prime is 3869321297. The reversal of 3869321280 is 821239683.

It is an interprime number because it is at equal distance from previous prime (3869321263) and next prime (3869321297).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21616231 + ... + 21616409.

Almost surely, 2^3869321280 is an apocalyptic number.

3869321280 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 3869321280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7110374400).

3869321280 is an abundant number, since it is smaller than the sum of its proper divisors (10351427520).

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

3869321280 is a wasteful number, since it uses less digits than its factorization.

3869321280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 3869321280 is about 62203.8686899778. The cubic root of 3869321280 is about 1569.9226813587.

The spelling of 3869321280 in words is "three billion, eight hundred sixty-nine million, three hundred twenty-one thousand, two hundred eighty".