51094978670063 has 2 divisors, whose sum is σ = 51094978670064. Its totient is φ = 51094978670062.

The previous prime is 51094978669957. The next prime is 51094978670083. The reversal of 51094978670063 is 36007687949015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51094978670063 - 2⁸ = 51094978669807 is a prime.

It is a super-2 number, since 2×51094978670063² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51094978670083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25547489335031 + 25547489335032.

It is an arithmetic number, because the mean of its divisors is an integer number (25547489335032).

Almost surely, 2^{51094978670063} is an apocalyptic number.

51094978670063 is a deficient number, since it is larger than the sum of its proper divisors (1).

51094978670063 is an equidigital number, since it uses as much as digits as its factorization.

51094978670063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68584320, while the sum is 65.

The spelling of 51094978670063 in words is "fifty-one trillion, ninety-four billion, nine hundred seventy-eight million, six hundred seventy thousand, sixty-three".