51305842107 has 12 divisors (see below), whose sum is σ = 79809087904. Its totient is φ = 31572825840.

The previous prime is 51305842103. The next prime is 51305842129. The reversal of 51305842107 is 70124850315.

51305842107 is a `hidden beast` number, since 51 + 3 + 0 + 584 + 21 + 0 + 7 = 666.

51305842107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51305842107 - 2² = 51305842103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51305842103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 219255619 + ... + 219255852.

Almost surely, 2^51305842107 is an apocalyptic number.

51305842107 is a deficient number, since it is larger than the sum of its proper divisors (28503245797).

51305842107 is a wasteful number, since it uses less digits than its factorization.

51305842107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438511490 (or 438511487 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The spelling of 51305842107 in words is "fifty-one billion, three hundred five million, eight hundred forty-two thousand, one hundred seven".