51435135347 has 2 divisors, whose sum is σ = 51435135348. Its totient is φ = 51435135346.

The previous prime is 51435135337. The next prime is 51435135371. The reversal of 51435135347 is 74353153415.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51435135347 - 2⁴ = 51435135331 is a prime.

It is not a weakly prime, because it can be changed into another prime (51435135317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25717567673 + 25717567674.

It is an arithmetic number, because the mean of its divisors is an integer number (25717567674).

Almost surely, 2^51435135347 is an apocalyptic number.

51435135347 is a deficient number, since it is larger than the sum of its proper divisors (1).

51435135347 is an equidigital number, since it uses as much as digits as its factorization.

51435135347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 378000, while the sum is 41.

The spelling of 51435135347 in words is "fifty-one billion, four hundred thirty-five million, one hundred thirty-five thousand, three hundred forty-seven".