852494954691 has 4 divisors (see below), whose sum is σ = 1136659939592. Its totient is φ = 568329969792.

The previous prime is 852494954611. The next prime is 852494954723. The reversal of 852494954691 is 196459494258.

It is a happy number.

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

It is not a de Polignac number, because 852494954691 - 2¹⁵ = 852494921923 is a prime.

It is a super-2 number, since 2×852494954691² (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 (852494954611) 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 in 3 ways as a sum of consecutive naturals, for example, 142082492446 + ... + 142082492451.

It is an arithmetic number, because the mean of its divisors is an integer number (284164984898).

Almost surely, 2^852494954691 is an apocalyptic number.

852494954691 is a deficient number, since it is larger than the sum of its proper divisors (284164984901).

852494954691 is a wasteful number, since it uses less digits than its factorization.

852494954691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284164984900.

The product of its digits is 111974400, while the sum is 66.

The spelling of 852494954691 in words is "eight hundred fifty-two billion, four hundred ninety-four million, nine hundred fifty-four thousand, six hundred ninety-one".