840854105127 has 12 divisors (see below), whose sum is σ = 1214647794360. Its totient is φ = 560532132528.

The previous prime is 840854105099. The next prime is 840854105131. The reversal of 840854105127 is 721501458048.

840854105127 is a `hidden beast` number, since 8 + 40 + 85 + 4 + 10 + 512 + 7 = 666.

It is not a de Polignac number, because 840854105127 - 2¹⁴ = 840854088743 is a prime.

It is a super-2 number, since 2×840854105127² (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 (840854105027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2962677 + ... + 3234062.

It is an arithmetic number, because the mean of its divisors is an integer number (101220649530).

Almost surely, 2^840854105127 is an apocalyptic number.

840854105127 is a deficient number, since it is larger than the sum of its proper divisors (373793689233).

840854105127 is a wasteful number, since it uses less digits than its factorization.

840854105127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6211822 (or 6211819 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The spelling of 840854105127 in words is "eight hundred forty billion, eight hundred fifty-four million, one hundred five thousand, one hundred twenty-seven".