53845137818 has 16 divisors (see below), whose sum is σ = 85445880000. Its totient is φ = 25377419232.

The previous prime is 53845137779. The next prime is 53845137821. The reversal of 53845137818 is 81873154835.

53845137818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×53845137818² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53845137818.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3552683 + ... + 3567806.

It is an arithmetic number, because the mean of its divisors is an integer number (5340367500).

Almost surely, 2^53845137818 is an apocalyptic number.

53845137818 is a deficient number, since it is larger than the sum of its proper divisors (31600742182).

53845137818 is a wasteful number, since it uses less digits than its factorization.

53845137818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7120709.

The product of its digits is 3225600, while the sum is 53.

The spelling of 53845137818 in words is "fifty-three billion, eight hundred forty-five million, one hundred thirty-seven thousand, eight hundred eighteen".