3868501872 has 20 divisors (see below), whose sum is σ = 9993629960. Its totient is φ = 1289500608.

The previous prime is 3868501867. The next prime is 3868501877. The reversal of 3868501872 is 2781058683.

3868501872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3868501867) and next prime (3868501877).

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 80593789 = 3868501872 / (3 + 8 + 6 + 8 + 5 + 0 + 1 + 8 + 7 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3868501877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40296847 + ... + 40296942.

It is an arithmetic number, because the mean of its divisors is an integer number (499681498).

Almost surely, 2^3868501872 is an apocalyptic number.

It is an amenable number.

3868501872 is an abundant number, since it is smaller than the sum of its proper divisors (6125128088).

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

3868501872 is a wasteful number, since it uses less digits than its factorization.

3868501872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80593800 (or 80593794 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The square root of 3868501872 is about 62197.2818698695. The cubic root of 3868501872 is about 1569.8118524450.

The spelling of 3868501872 in words is "three billion, eight hundred sixty-eight million, five hundred one thousand, eight hundred seventy-two".