19877854583 has 2 divisors, whose sum is σ = 19877854584. Its totient is φ = 19877854582.

The previous prime is 19877854547. The next prime is 19877854613. The reversal of 19877854583 is 38545877891.

It is a strong prime.

It is an emirp because it is prime and its reverse (38545877891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19877854583 - 2⁶ = 19877854519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19877854483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9938927291 + 9938927292.

It is an arithmetic number, because the mean of its divisors is an integer number (9938927292).

Almost surely, 2^19877854583 is an apocalyptic number.

19877854583 is a deficient number, since it is larger than the sum of its proper divisors (1).

19877854583 is an equidigital number, since it uses as much as digits as its factorization.

19877854583 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67737600, while the sum is 65.

The spelling of 19877854583 in words is "nineteen billion, eight hundred seventy-seven million, eight hundred fifty-four thousand, five hundred eighty-three".