51134119997 has 2 divisors, whose sum is σ = 51134119998. Its totient is φ = 51134119996.

The previous prime is 51134119973. The next prime is 51134120029. The reversal of 51134119997 is 79991143115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35961053956 + 15173066041 = 189634^2 + 123179^2 .

It is a cyclic number.

It is not a de Polignac number, because 51134119997 - 2²⁶ = 51067011133 is a prime.

It is a super-2 number, since 2×51134119997² (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 (51134116997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25567059998 + 25567059999.

It is an arithmetic number, because the mean of its divisors is an integer number (25567059999).

Almost surely, 2^51134119997 is an apocalyptic number.

It is an amenable number.

51134119997 is a deficient number, since it is larger than the sum of its proper divisors (1).

51134119997 is an equidigital number, since it uses as much as digits as its factorization.

51134119997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 306180, while the sum is 50.

The spelling of 51134119997 in words is "fifty-one billion, one hundred thirty-four million, one hundred nineteen thousand, nine hundred ninety-seven".