840918933087 has 8 divisors (see below), whose sum is σ = 1121230361136. Its totient is φ = 560610063552.

The previous prime is 840918933079. The next prime is 840918933119. The reversal of 840918933087 is 780339819048.

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

It is not a de Polignac number, because 840918933087 - 2³ = 840918933079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 840918933087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840918933037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342883 + ... + 1341419.

It is an arithmetic number, because the mean of its divisors is an integer number (140153795142).

Almost surely, 2^840918933087 is an apocalyptic number.

840918933087 is a deficient number, since it is larger than the sum of its proper divisors (280311428049).

840918933087 is a wasteful number, since it uses less digits than its factorization.

840918933087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279257.

The product of its (nonzero) digits is 10450944, while the sum is 60.

The spelling of 840918933087 in words is "eight hundred forty billion, nine hundred eighteen million, nine hundred thirty-three thousand, eighty-seven".