853493526840 has 32 divisors (see below), whose sum is σ = 2560480580880. Its totient is φ = 227598273792.

The previous prime is 853493526839. The next prime is 853493526869. The reversal of 853493526840 is 48625394358.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3556222909 + ... + 3556223148.

Almost surely, 2^853493526840 is an apocalyptic number.

It is an amenable number.

853493526840 is an abundant number, since it is smaller than the sum of its proper divisors (1706987054040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

853493526840 is a wasteful number, since it uses less digits than its factorization.

853493526840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7112446071 (or 7112446067 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 57.

The spelling of 853493526840 in words is "eight hundred fifty-three billion, four hundred ninety-three million, five hundred twenty-six thousand, eight hundred forty".