618473537851 has 32 divisors (see below), whose sum is σ = 711232885440. Its totient is φ = 533590073856.

The previous prime is 618473537839. The next prime is 618473537867. The reversal of 618473537851 is 158735374816.

It is a cyclic number.

It is not a de Polignac number, because 618473537851 - 2³¹ = 616326054203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (618473537051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2635420 + ... + 2860486.

It is an arithmetic number, because the mean of its divisors is an integer number (22226027670).

Almost surely, 2^618473537851 is an apocalyptic number.

618473537851 is a deficient number, since it is larger than the sum of its proper divisors (92759347589).

618473537851 is a wasteful number, since it uses less digits than its factorization.

618473537851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225343.

The product of its digits is 16934400, while the sum is 58.

The spelling of 618473537851 in words is "six hundred eighteen billion, four hundred seventy-three million, five hundred thirty-seven thousand, eight hundred fifty-one".