51634344611 has 2 divisors, whose sum is σ = 51634344612. Its totient is φ = 51634344610.

The previous prime is 51634344581. The next prime is 51634344677. The reversal of 51634344611 is 11644343615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51634344611 - 2³⁴ = 34454475427 is a prime.

It is a super-2 number, since 2×51634344611² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51634344911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25817172305 + 25817172306.

It is an arithmetic number, because the mean of its divisors is an integer number (25817172306).

Almost surely, 2^51634344611 is an apocalyptic number.

51634344611 is a deficient number, since it is larger than the sum of its proper divisors (1).

51634344611 is an equidigital number, since it uses as much as digits as its factorization.

51634344611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 38.

The spelling of 51634344611 in words is "fifty-one billion, six hundred thirty-four million, three hundred forty-four thousand, six hundred eleven".