51307827201 has 24 divisors (see below), whose sum is σ = 74914461440. Its totient is φ = 33836312736.

The previous prime is 51307827167. The next prime is 51307827217. The reversal of 51307827201 is 10272870315.

51307827201 is a `hidden beast` number, since 513 + 0 + 78 + 2 + 72 + 0 + 1 = 666.

It is not a de Polignac number, because 51307827201 - 2³¹ = 49160343553 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51307827251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 272496 + ... + 420558.

Almost surely, 2^51307827201 is an apocalyptic number.

It is an amenable number.

51307827201 is a deficient number, since it is larger than the sum of its proper divisors (23606634239).

51307827201 is a wasteful number, since it uses less digits than its factorization.

51307827201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148485 (or 148482 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The spelling of 51307827201 in words is "fifty-one billion, three hundred seven million, eight hundred twenty-seven thousand, two hundred one".