51124165850 has 24 divisors (see below), whose sum is σ = 95170766940. Its totient is φ = 20432501120.

The previous prime is 51124165777. The next prime is 51124165861. The reversal of 51124165850 is 5856142115.

It can be written as a sum of positive squares in 6 ways, for example, as 36290631001 + 14833534849 = 190501^2 + 121793^2 .

It is a super-2 number, since 2×51124165850² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 368885 + ... + 488184.

Almost surely, 2^51124165850 is an apocalyptic number.

51124165850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51124165850 is a deficient number, since it is larger than the sum of its proper divisors (44046601090).

51124165850 is a wasteful number, since it uses less digits than its factorization.

51124165850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858274 (or 858269 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 38.

The spelling of 51124165850 in words is "fifty-one billion, one hundred twenty-four million, one hundred sixty-five thousand, eight hundred fifty".