64347354737 has 2 divisors, whose sum is σ = 64347354738. Its totient is φ = 64347354736.

The previous prime is 64347354677. The next prime is 64347354761. The reversal of 64347354737 is 73745374346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60997144576 + 3350210161 = 246976^2 + 57881^2 .

It is a cyclic number.

It is not a de Polignac number, because 64347354737 - 2¹⁴ = 64347338353 is a prime.

It is not a weakly prime, because it can be changed into another prime (64347354767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32173677368 + 32173677369.

It is an arithmetic number, because the mean of its divisors is an integer number (32173677369).

Almost surely, 2^64347354737 is an apocalyptic number.

It is an amenable number.

64347354737 is a deficient number, since it is larger than the sum of its proper divisors (1).

64347354737 is an equidigital number, since it uses as much as digits as its factorization.

64347354737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17781120, while the sum is 53.

The spelling of 64347354737 in words is "sixty-four billion, three hundred forty-seven million, three hundred fifty-four thousand, seven hundred thirty-seven".