51692877191 has 2 divisors, whose sum is σ = 51692877192. Its totient is φ = 51692877190.

The previous prime is 51692877169. The next prime is 51692877209. The reversal of 51692877191 is 19177829615.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51692877191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51692877151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25846438595 + 25846438596.

It is an arithmetic number, because the mean of its divisors is an integer number (25846438596).

Almost surely, 2^51692877191 is an apocalyptic number.

51692877191 is a deficient number, since it is larger than the sum of its proper divisors (1).

51692877191 is an equidigital number, since it uses as much as digits as its factorization.

51692877191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1905120, while the sum is 56.

The spelling of 51692877191 in words is "fifty-one billion, six hundred ninety-two million, eight hundred seventy-seven thousand, one hundred ninety-one".