3981511463 has 2 divisors, whose sum is σ = 3981511464. Its totient is φ = 3981511462.

The previous prime is 3981511403. The next prime is 3981511483. The reversal of 3981511463 is 3641151893.

3981511463 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3981511463 - 2¹² = 3981507367 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3981511463.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3981511403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1990755731 + 1990755732.

It is an arithmetic number, because the mean of its divisors is an integer number (1990755732).

Almost surely, 2^3981511463 is an apocalyptic number.

3981511463 is a deficient number, since it is larger than the sum of its proper divisors (1).

3981511463 is an equidigital number, since it uses as much as digits as its factorization.

3981511463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 41.

The square root of 3981511463 is about 63099.2191948522. The cubic root of 3981511463 is about 1584.9515471792.

The spelling of 3981511463 in words is "three billion, nine hundred eighty-one million, five hundred eleven thousand, four hundred sixty-three".