850007692697 has 4 divisors (see below), whose sum is σ = 879318302820. Its totient is φ = 820697082576.

The previous prime is 850007692691. The next prime is 850007692733. The reversal of 850007692697 is 796296700058.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 731467957081 + 118539735616 = 855259^2 + 344296^2 .

It is a cyclic number.

It is not a de Polignac number, because 850007692697 - 2⁸ = 850007692441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (850007692691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14655305018 + ... + 14655305075.

It is an arithmetic number, because the mean of its divisors is an integer number (219829575705).

Almost surely, 2^850007692697 is an apocalyptic number.

It is an amenable number.

850007692697 is a deficient number, since it is larger than the sum of its proper divisors (29310610123).

850007692697 is a wasteful number, since it uses less digits than its factorization.

850007692697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29310610122.

The product of its (nonzero) digits is 11430720, while the sum is 59.

The spelling of 850007692697 in words is "eight hundred fifty billion, seven million, six hundred ninety-two thousand, six hundred ninety-seven".