51342637963 has 2 divisors, whose sum is σ = 51342637964. Its totient is φ = 51342637962.

The previous prime is 51342637949. The next prime is 51342637981. The reversal of 51342637963 is 36973624315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51342637963 - 2¹³ = 51342629771 is a prime.

It is not a weakly prime, because it can be changed into another prime (51342637933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25671318981 + 25671318982.

It is an arithmetic number, because the mean of its divisors is an integer number (25671318982).

Almost surely, 2^51342637963 is an apocalyptic number.

51342637963 is a deficient number, since it is larger than the sum of its proper divisors (1).

51342637963 is an equidigital number, since it uses as much as digits as its factorization.

51342637963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2449440, while the sum is 49.

The spelling of 51342637963 in words is "fifty-one billion, three hundred forty-two million, six hundred thirty-seven thousand, nine hundred sixty-three".