51196000069 has 2 divisors, whose sum is σ = 51196000070. Its totient is φ = 51196000068.

The previous prime is 51196000039. The next prime is 51196000109. The reversal of 51196000069 is 96000069115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45769467844 + 5426532225 = 213938^2 + 73665^2 .

It is a cyclic number.

It is not a de Polignac number, because 51196000069 - 2⁹ = 51195999557 is a prime.

It is a super-2 number, since 2×51196000069² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51196000039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25598000034 + 25598000035.

It is an arithmetic number, because the mean of its divisors is an integer number (25598000035).

Almost surely, 2^51196000069 is an apocalyptic number.

It is an amenable number.

51196000069 is a deficient number, since it is larger than the sum of its proper divisors (1).

51196000069 is an equidigital number, since it uses as much as digits as its factorization.

51196000069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 37.

The spelling of 51196000069 in words is "fifty-one billion, one hundred ninety-six million, sixty-nine", and thus it is an aban number.