51852186850 has 48 divisors (see below), whose sum is σ = 98194864680. Its totient is φ = 20365747200.

The previous prime is 51852186833. The next prime is 51852186887. The reversal of 51852186850 is 5868125815.

It can be written as a sum of positive squares in 12 ways, for example, as 1537659369 + 50314527481 = 39213^2 + 224309^2 .

It is a super-2 number, since 2×51852186850² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51852186794 and 51852186803.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1794316 + ... + 1822984.

Almost surely, 2^51852186850 is an apocalyptic number.

51852186850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51852186850 is a deficient number, since it is larger than the sum of its proper divisors (46342677830).

51852186850 is a wasteful number, since it uses less digits than its factorization.

51852186850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29335 (or 29330 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 49.

The spelling of 51852186850 in words is "fifty-one billion, eight hundred fifty-two million, one hundred eighty-six thousand, eight hundred fifty".