10840253647 has 4 divisors (see below), whose sum is σ = 10841255560. Its totient is φ = 10839251736.

The previous prime is 10840253639. The next prime is 10840253653. The reversal of 10840253647 is 74635204801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74635204801 = 44587 ⋅1673923.

It is a cyclic number.

It is not a de Polignac number, because 10840253647 - 2³ = 10840253639 is a prime.

It is a super-2 number, since 2×10840253647² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10840253617) 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, 484548 + ... + 506425.

It is an arithmetic number, because the mean of its divisors is an integer number (2710313890).

Almost surely, 2^10840253647 is an apocalyptic number.

10840253647 is a deficient number, since it is larger than the sum of its proper divisors (1001913).

10840253647 is an equidigital number, since it uses as much as digits as its factorization.

10840253647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001912.

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 10840253647 in words is "ten billion, eight hundred forty million, two hundred fifty-three thousand, six hundred forty-seven".