3886891500 has 48 divisors (see below), whose sum is σ = 11318632416. Its totient is φ = 1036504000.

The previous prime is 3886891499. The next prime is 3886891511. The reversal of 3886891500 is 51986883.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 3886891500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1294131 + ... + 1297130.

It is an arithmetic number, because the mean of its divisors is an integer number (235804842).

Almost surely, 2^3886891500 is an apocalyptic number.

3886891500 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3886891500 is an abundant number, since it is smaller than the sum of its proper divisors (7431740916).

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

3886891500 is a wasteful number, since it uses less digits than its factorization.

3886891500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591283 (or 2591271 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 48.

The square root of 3886891500 is about 62344.9396503036. The cubic root of 3886891500 is about 1572.2953834406.

The spelling of 3886891500 in words is "three billion, eight hundred eighty-six million, eight hundred ninety-one thousand, five hundred".