769242189217 has 2 divisors, whose sum is σ = 769242189218. Its totient is φ = 769242189216.

The previous prime is 769242189187. The next prime is 769242189223. The reversal of 769242189217 is 712981242967.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 580292009361 + 188950179856 = 761769^2 + 434684^2 .

It is a cyclic number.

It is not a de Polignac number, because 769242189217 - 2³¹ = 767094705569 is a prime.

It is not a weakly prime, because it can be changed into another prime (769242189017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384621094608 + 384621094609.

It is an arithmetic number, because the mean of its divisors is an integer number (384621094609).

Almost surely, 2^769242189217 is an apocalyptic number.

It is an amenable number.

769242189217 is a deficient number, since it is larger than the sum of its proper divisors (1).

769242189217 is an equidigital number, since it uses as much as digits as its factorization.

769242189217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6096384, while the sum is 58.

The spelling of 769242189217 in words is "seven hundred sixty-nine billion, two hundred forty-two million, one hundred eighty-nine thousand, two hundred seventeen".