3876211481 has 4 divisors (see below), whose sum is σ = 3876643764. Its totient is φ = 3875779200.

The previous prime is 3876211453. The next prime is 3876211513. The reversal of 3876211481 is 1841126783.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 461562256 + 3414649225 = 21484^2 + 58435^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3876211481 is a prime.

It is a super-2 number, since 2×3876211481² = 30050030890872426722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3876211181) 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, 202400 + ... + 220721.

It is an arithmetic number, because the mean of its divisors is an integer number (969160941).

Almost surely, 2^3876211481 is an apocalyptic number.

It is an amenable number.

3876211481 is a deficient number, since it is larger than the sum of its proper divisors (432283).

3876211481 is an equidigital number, since it uses as much as digits as its factorization.

3876211481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432282.

The product of its digits is 64512, while the sum is 41.

The square root of 3876211481 is about 62259.2280790567. The cubic root of 3876211481 is about 1570.8539961499.

The spelling of 3876211481 in words is "three billion, eight hundred seventy-six million, two hundred eleven thousand, four hundred eighty-one".