51437356450 has 24 divisors (see below), whose sum is σ = 101301336612. Its totient is φ = 19364651520.

The previous prime is 51437356447. The next prime is 51437356471. The reversal of 51437356450 is 5465373415.

It can be written as a sum of positive squares in 6 ways, for example, as 23678131129 + 27759225321 = 153877^2 + 166611^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51437356397 and 51437356406.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30256419 + ... + 30258118.

Almost surely, 2^51437356450 is an apocalyptic number.

51437356450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51437356450 is a deficient number, since it is larger than the sum of its proper divisors (49863980162).

51437356450 is a wasteful number, since it uses less digits than its factorization.

51437356450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60514566 (or 60514561 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 43.

The spelling of 51437356450 in words is "fifty-one billion, four hundred thirty-seven million, three hundred fifty-six thousand, four hundred fifty".