51816060900 has 108 divisors (see below), whose sum is σ = 170962755600. Its totient is φ = 13090368960.

The previous prime is 51816060847. The next prime is 51816060913. The reversal of 51816060900 is 906061815.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1497990 + ... + 1532189.

Almost surely, 2^51816060900 is an apocalyptic number.

51816060900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51816060900 is an abundant number, since it is smaller than the sum of its proper divisors (119146694700).

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

51816060900 is a wasteful number, since it uses less digits than its factorization.

51816060900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030218 (or 3030208 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The spelling of 51816060900 in words is "fifty-one billion, eight hundred sixteen million, sixty thousand, nine hundred".