840475542699 has 48 divisors (see below), whose sum is σ = 1317967691040. Its totient is φ = 513049904640.

The previous prime is 840475542689. The next prime is 840475542703. The reversal of 840475542699 is 996245574048.

840475542699 is a `hidden beast` number, since 8 + 4 + 0 + 475 + 54 + 26 + 99 = 666.

It is not a de Polignac number, because 840475542699 - 2⁵ = 840475542667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (840475542619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9893697 + ... + 9978285.

It is an arithmetic number, because the mean of its divisors is an integer number (27457660230).

Almost surely, 2^840475542699 is an apocalyptic number.

840475542699 is a deficient number, since it is larger than the sum of its proper divisors (477492148341).

840475542699 is a wasteful number, since it uses less digits than its factorization.

840475542699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85292 (or 85289 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 63.

The spelling of 840475542699 in words is "eight hundred forty billion, four hundred seventy-five million, five hundred forty-two thousand, six hundred ninety-nine".