84358707818 has 48 divisors (see below), whose sum is σ = 160616196000. Its totient is φ = 32859398880.

The previous prime is 84358707817. The next prime is 84358707833. The reversal of 84358707818 is 81870785348.

It is a super-2 number, since 2×84358707818² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84358707817) 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 23 ways as a sum of consecutive naturals, for example, 7560908 + ... + 7572056.

It is an arithmetic number, because the mean of its divisors is an integer number (3346170750).

Almost surely, 2^84358707818 is an apocalyptic number.

84358707818 is a deficient number, since it is larger than the sum of its proper divisors (76257488182).

84358707818 is a wasteful number, since it uses less digits than its factorization.

84358707818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18195 (or 18188 counting only the distinct ones).

The product of its (nonzero) digits is 12042240, while the sum is 59.

The spelling of 84358707818 in words is "eighty-four billion, three hundred fifty-eight million, seven hundred seven thousand, eight hundred eighteen".