51435031228 has 24 divisors (see below), whose sum is σ = 103027633632. Its totient is φ = 22009819584.

The previous prime is 51435031217. The next prime is 51435031229. The reversal of 51435031228 is 82213053415.

It is a junction number, because it is equal to n+sod(n) for n = 51435031193 and 51435031202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51435031229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1388275 + ... + 1424842.

It is an arithmetic number, because the mean of its divisors is an integer number (4292818068).

Almost surely, 2^51435031228 is an apocalyptic number.

It is an amenable number.

51435031228 is an abundant number, since it is smaller than the sum of its proper divisors (51592602404).

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

51435031228 is a wasteful number, since it uses less digits than its factorization.

51435031228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813781 (or 2813779 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 51435031228 in words is "fifty-one billion, four hundred thirty-five million, thirty-one thousand, two hundred twenty-eight".