1912064771 has 2 divisors, whose sum is σ = 1912064772. Its totient is φ = 1912064770.

The previous prime is 1912064761. The next prime is 1912064809. The reversal of 1912064771 is 1774602191.

It is an a-pointer prime, because the next prime (1912064809) can be obtained adding 1912064771 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1912064771 is a prime.

It is not a weakly prime, because it can be changed into another prime (1912064761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 956032385 + 956032386.

It is an arithmetic number, because the mean of its divisors is an integer number (956032386).

Almost surely, 2^1912064771 is an apocalyptic number.

1912064771 is a deficient number, since it is larger than the sum of its proper divisors (1).

1912064771 is an equidigital number, since it uses as much as digits as its factorization.

1912064771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 1912064771 is about 43727.1628510243. The cubic root of 1912064771 is about 1241.1783740679.

The spelling of 1912064771 in words is "one billion, nine hundred twelve million, sixty-four thousand, seven hundred seventy-one".