51214930280 has 32 divisors (see below), whose sum is σ = 115240436640. Its totient is φ = 20484755520.

The previous prime is 51214930271. The next prime is 51214930289. The reversal of 51214930280 is 8203941215.

It is an interprime number because it is at equal distance from previous prime (51214930271) and next prime (51214930289).

It is a self number, because there is not a number n which added to its sum of digits gives 51214930280.

It is not an unprimeable number, because it can be changed into a prime (51214930289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 981407 + ... + 1032273.

It is an arithmetic number, because the mean of its divisors is an integer number (3601263645).

Almost surely, 2^51214930280 is an apocalyptic number.

It is an amenable number.

51214930280 is an abundant number, since it is smaller than the sum of its proper divisors (64025506360).

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

51214930280 is a wasteful number, since it uses less digits than its factorization.

51214930280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76049 (or 76045 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 51214930280 in words is "fifty-one billion, two hundred fourteen million, nine hundred thirty thousand, two hundred eighty".