51146413800 has 96 divisors (see below), whose sum is σ = 161153242080. Its totient is φ = 13415443200.

The previous prime is 51146413793. The next prime is 51146413807. The reversal of 51146413800 is 831464115.

It is an interprime number because it is at equal distance from previous prime (51146413793) and next prime (51146413807).

It is not an unprimeable number, because it can be changed into a prime (51146413807) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 662122 + ... + 735321.

It is an arithmetic number, because the mean of its divisors is an integer number (1678679605).

Almost surely, 2^51146413800 is an apocalyptic number.

51146413800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51146413800 is an abundant number, since it is smaller than the sum of its proper divisors (110006828280).

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

51146413800 is a wasteful number, since it uses less digits than its factorization.

51146413800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397523 (or 1397514 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

Adding to 51146413800 its reverse (831464115), we get a palindrome (51977877915).

The spelling of 51146413800 in words is "fifty-one billion, one hundred forty-six million, four hundred thirteen thousand, eight hundred".