3674641489891 has 2 divisors, whose sum is σ = 3674641489892. Its totient is φ = 3674641489890.

The previous prime is 3674641489861. The next prime is 3674641489943. The reversal of 3674641489891 is 1989841464763.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3674641489891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3674641489891.

It is not a weakly prime, because it can be changed into another prime (3674641489861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1837320744945 + 1837320744946.

It is an arithmetic number, because the mean of its divisors is an integer number (1837320744946).

Almost surely, 2^{3674641489891} is an apocalyptic number.

3674641489891 is a deficient number, since it is larger than the sum of its proper divisors (1).

3674641489891 is an equidigital number, since it uses as much as digits as its factorization.

3674641489891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 250822656, while the sum is 70.

The spelling of 3674641489891 in words is "three trillion, six hundred seventy-four billion, six hundred forty-one million, four hundred eighty-nine thousand, eight hundred ninety-one".