3881797632 has 72 divisors (see below), whose sum is σ = 11211397470. Its totient is φ = 1293926400.

The previous prime is 3881797627. The next prime is 3881797637. The reversal of 3881797632 is 2367971883.

It is an interprime number because it is at equal distance from previous prime (3881797627) and next prime (3881797637).

It can be written as a sum of positive squares in only one way, i.e., 3881788416 + 9216 = 62304^2 + 96^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (3881797637) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 86869 + ... + 123732.

Almost surely, 2^3881797632 is an apocalyptic number.

3881797632 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3881797632 is an abundant number, since it is smaller than the sum of its proper divisors (7329599838).

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

3881797632 is a wasteful number, since it uses less digits than its factorization.

3881797632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210629 (or 210606 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 3881797632 is about 62304.0739598945. The cubic root of 3881797632 is about 1571.6082391092.

The spelling of 3881797632 in words is "three billion, eight hundred eighty-one million, seven hundred ninety-seven thousand, six hundred thirty-two".