4819666964391 has 6 divisors (see below), whose sum is σ = 6961741170800. Its totient is φ = 3213111309588.

The previous prime is 4819666964381. The next prime is 4819666964401. The reversal of 4819666964391 is 1934696669184.

It is an interprime number because it is at equal distance from previous prime (4819666964381) and next prime (4819666964401).

It is not a de Polignac number, because 4819666964391 - 2⁷ = 4819666964263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4819666964341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 267759275791 + ... + 267759275808.

Almost surely, 2^{4819666964391} is an apocalyptic number.

4819666964391 is a deficient number, since it is larger than the sum of its proper divisors (2142074206409).

4819666964391 is a wasteful number, since it uses less digits than its factorization.

4819666964391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535518551605 (or 535518551602 counting only the distinct ones).

The product of its digits is 362797056, while the sum is 72.

The spelling of 4819666964391 in words is "four trillion, eight hundred nineteen billion, six hundred sixty-six million, nine hundred sixty-four thousand, three hundred ninety-one".