853293989890 has 8 divisors (see below), whose sum is σ = 1535929181820. Its totient is φ = 341317595952.

The previous prime is 853293989851. The next prime is 853293989909. The reversal of 853293989890 is 98989392358.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 852266851489 + 1027138401 = 923183^2 + 32049^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×853293989890² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42664699485 + ... + 42664699504.

Almost surely, 2^853293989890 is an apocalyptic number.

853293989890 is a deficient number, since it is larger than the sum of its proper divisors (682635191930).

853293989890 is a wasteful number, since it uses less digits than its factorization.

853293989890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85329398996.

The product of its (nonzero) digits is 302330880, while the sum is 73.

The spelling of 853293989890 in words is "eight hundred fifty-three billion, two hundred ninety-three million, nine hundred eighty-nine thousand, eight hundred ninety".