51870752147 has 2 divisors, whose sum is σ = 51870752148. Its totient is φ = 51870752146.

The previous prime is 51870752119. The next prime is 51870752207. The reversal of 51870752147 is 74125707815.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51870752147 - 2¹² = 51870748051 is a prime.

It is not a weakly prime, because it can be changed into another prime (51870752107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25935376073 + 25935376074.

It is an arithmetic number, because the mean of its divisors is an integer number (25935376074).

Almost surely, 2^51870752147 is an apocalyptic number.

51870752147 is a deficient number, since it is larger than the sum of its proper divisors (1).

51870752147 is an equidigital number, since it uses as much as digits as its factorization.

51870752147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 548800, while the sum is 47.

The spelling of 51870752147 in words is "fifty-one billion, eight hundred seventy million, seven hundred fifty-two thousand, one hundred forty-seven".