850573252747 has 4 divisors (see below), whose sum is σ = 852305581656. Its totient is φ = 848840923840.

The previous prime is 850573252723. The next prime is 850573252769. The reversal of 850573252747 is 747252375058.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 850573252747 - 2³⁵ = 816213514379 is a prime.

It is a super-2 number, since 2×850573252747² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (850573252787) 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, 866163718 + ... + 866164699.

It is an arithmetic number, because the mean of its divisors is an integer number (213076395414).

Almost surely, 2^850573252747 is an apocalyptic number.

850573252747 is a deficient number, since it is larger than the sum of its proper divisors (1732328909).

850573252747 is a wasteful number, since it uses less digits than its factorization.

850573252747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732328908.

The product of its (nonzero) digits is 16464000, while the sum is 55.

The spelling of 850573252747 in words is "eight hundred fifty billion, five hundred seventy-three million, two hundred fifty-two thousand, seven hundred forty-seven".