2051378047 has 2 divisors, whose sum is σ = 2051378048. Its totient is φ = 2051378046.

The previous prime is 2051378033. The next prime is 2051378093. The reversal of 2051378047 is 7408731502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2051378047 - 2¹⁹ = 2050853759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2051377997 and 2051378015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2051378447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025689023 + 1025689024.

It is an arithmetic number, because the mean of its divisors is an integer number (1025689024).

Almost surely, 2^2051378047 is an apocalyptic number.

2051378047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051378047 is an equidigital number, since it uses as much as digits as its factorization.

2051378047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 2051378047 is about 45292.1411174168. The cubic root of 2051378047 is about 1270.6186761830.

The spelling of 2051378047 in words is "two billion, fifty-one million, three hundred seventy-eight thousand, forty-seven".