852496420391 has 32 divisors (see below), whose sum is σ = 1078665185280. Its totient is φ = 654436972800.

The previous prime is 852496420387. The next prime is 852496420429. The reversal of 852496420391 is 193024694258.

It is a cyclic number.

It is not a de Polignac number, because 852496420391 - 2² = 852496420387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (852496420351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2626601 + ... + 2933261.

It is an arithmetic number, because the mean of its divisors is an integer number (33708287040).

Almost surely, 2^852496420391 is an apocalyptic number.

852496420391 is a deficient number, since it is larger than the sum of its proper divisors (226168764889).

852496420391 is a wasteful number, since it uses less digits than its factorization.

852496420391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307215.

The product of its (nonzero) digits is 3732480, while the sum is 53.

The spelling of 852496420391 in words is "eight hundred fifty-two billion, four hundred ninety-six million, four hundred twenty thousand, three hundred ninety-one".