50309537818 has 8 divisors (see below), whose sum is σ = 77304899700. Its totient is φ = 24541237920.

The previous prime is 50309537749. The next prime is 50309537833. The reversal of 50309537818 is 81873590305.

50309537818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 44598259489 + 5711278329 = 211183^2 + 75573^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×50309537818² (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 3 ways as a sum of consecutive naturals, for example, 306765393 + ... + 306765556.

Almost surely, 2^50309537818 is an apocalyptic number.

50309537818 is a deficient number, since it is larger than the sum of its proper divisors (26995361882).

50309537818 is a wasteful number, since it uses less digits than its factorization.

50309537818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613530992.

The product of its (nonzero) digits is 907200, while the sum is 49.

The spelling of 50309537818 in words is "fifty billion, three hundred nine million, five hundred thirty-seven thousand, eight hundred eighteen".