53833072818 has 256 divisors, whose sum is σ = 137719296000. Its totient is φ = 13685511168.

The previous prime is 53833072789. The next prime is 53833072849. The reversal of 53833072818 is 81827033835.

It is a super-2 number, since 2×53833072818² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 138388168 + ... + 138388556.

It is an arithmetic number, because the mean of its divisors is an integer number (537966000).

Almost surely, 2^53833072818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53833072818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68859648000).

53833072818 is an abundant number, since it is smaller than the sum of its proper divisors (83886223182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53833072818 is a wasteful number, since it uses less digits than its factorization.

53833072818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 53833072818 in words is "fifty-three billion, eight hundred thirty-three million, seventy-two thousand, eight hundred eighteen".