34447894487 has 2 divisors, whose sum is σ = 34447894488. Its totient is φ = 34447894486.

The previous prime is 34447894483. The next prime is 34447894519. The reversal of 34447894487 is 78449874443.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 34447894487 - 2² = 34447894483 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34447894483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17223947243 + 17223947244.

It is an arithmetic number, because the mean of its divisors is an integer number (17223947244).

Almost surely, 2^34447894487 is an apocalyptic number.

34447894487 is a deficient number, since it is larger than the sum of its proper divisors (1).

34447894487 is an equidigital number, since it uses as much as digits as its factorization.

34447894487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86704128, while the sum is 62.

The spelling of 34447894487 in words is "thirty-four billion, four hundred forty-seven million, eight hundred ninety-four thousand, four hundred eighty-seven".