3874616491 has 2 divisors, whose sum is σ = 3874616492. Its totient is φ = 3874616490.

The previous prime is 3874616453. The next prime is 3874616507. The reversal of 3874616491 is 1946164783.

It is a strong prime.

It is an emirp because it is prime and its reverse (1946164783) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3874616491 is a prime.

It is not a weakly prime, because it can be changed into another prime (3874616411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1937308245 + 1937308246.

It is an arithmetic number, because the mean of its divisors is an integer number (1937308246).

Almost surely, 2^3874616491 is an apocalyptic number.

3874616491 is a deficient number, since it is larger than the sum of its proper divisors (1).

3874616491 is an equidigital number, since it uses as much as digits as its factorization.

3874616491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 49.

The square root of 3874616491 is about 62246.4174953065. The cubic root of 3874616491 is about 1570.6385073785.

The spelling of 3874616491 in words is "three billion, eight hundred seventy-four million, six hundred sixteen thousand, four hundred ninety-one".