840916666740 has 48 divisors (see below), whose sum is σ = 2394474586560. Its totient is φ = 220443690240.

The previous prime is 840916666729. The next prime is 840916666753. The reversal of 840916666740 is 47666619048.

It is a super-2 number, since 2×840916666740² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118770001 + ... + 118777080.

It is an arithmetic number, because the mean of its divisors is an integer number (49884887220).

Almost surely, 2^840916666740 is an apocalyptic number.

It is an amenable number.

840916666740 is an abundant number, since it is smaller than the sum of its proper divisors (1553557919820).

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

840916666740 is a wasteful number, since it uses less digits than its factorization.

840916666740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237547152 (or 237547150 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 57.

The spelling of 840916666740 in words is "eight hundred forty billion, nine hundred sixteen million, six hundred sixty-six thousand, seven hundred forty".