19880674271 has 2 divisors, whose sum is σ = 19880674272. Its totient is φ = 19880674270.

The previous prime is 19880674267. The next prime is 19880674283. The reversal of 19880674271 is 17247608891.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19880674271 - 2² = 19880674267 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19880674771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9940337135 + 9940337136.

It is an arithmetic number, because the mean of its divisors is an integer number (9940337136).

Almost surely, 2^19880674271 is an apocalyptic number.

19880674271 is a deficient number, since it is larger than the sum of its proper divisors (1).

19880674271 is an equidigital number, since it uses as much as digits as its factorization.

19880674271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 53.

The spelling of 19880674271 in words is "nineteen billion, eight hundred eighty million, six hundred seventy-four thousand, two hundred seventy-one".