840810013407 has 48 divisors (see below), whose sum is σ = 1494924045888. Its totient is φ = 443459473920.

The previous prime is 840810013403. The next prime is 840810013499. The reversal of 840810013407 is 704310018048.

It is not a de Polignac number, because 840810013407 - 2² = 840810013403 is a prime.

It is a super-2 number, since 2×840810013407² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840810013403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9055357 + ... + 9147737.

It is an arithmetic number, because the mean of its divisors is an integer number (31144250956).

Almost surely, 2^840810013407 is an apocalyptic number.

840810013407 is a deficient number, since it is larger than the sum of its proper divisors (654114032481).

840810013407 is a wasteful number, since it uses less digits than its factorization.

840810013407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103520 (or 103517 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The spelling of 840810013407 in words is "eight hundred forty billion, eight hundred ten million, thirteen thousand, four hundred seven".