34357409521 has 2 divisors, whose sum is σ = 34357409522. Its totient is φ = 34357409520.

The previous prime is 34357409491. The next prime is 34357409543. The reversal of 34357409521 is 12590475343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33467043600 + 890365921 = 182940^2 + 29839^2 .

It is a cyclic number.

It is not a de Polignac number, because 34357409521 - 2¹³ = 34357401329 is a prime.

It is not a weakly prime, because it can be changed into another prime (34357409551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17178704760 + 17178704761.

It is an arithmetic number, because the mean of its divisors is an integer number (17178704761).

Almost surely, 2^34357409521 is an apocalyptic number.

It is an amenable number.

34357409521 is a deficient number, since it is larger than the sum of its proper divisors (1).

34357409521 is an equidigital number, since it uses as much as digits as its factorization.

34357409521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 34357409521 in words is "thirty-four billion, three hundred fifty-seven million, four hundred nine thousand, five hundred twenty-one".