51911267963 has 2 divisors, whose sum is σ = 51911267964. Its totient is φ = 51911267962.

The previous prime is 51911267923. The next prime is 51911268001. The reversal of 51911267963 is 36976211915.

51911267963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51911267963 is a prime.

It is not a weakly prime, because it can be changed into another prime (51911267923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25955633981 + 25955633982.

It is an arithmetic number, because the mean of its divisors is an integer number (25955633982).

Almost surely, 2^51911267963 is an apocalyptic number.

51911267963 is a deficient number, since it is larger than the sum of its proper divisors (1).

51911267963 is an equidigital number, since it uses as much as digits as its factorization.

51911267963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 612360, while the sum is 50.

The spelling of 51911267963 in words is "fifty-one billion, nine hundred eleven million, two hundred sixty-seven thousand, nine hundred sixty-three".