34420349947 has 2 divisors, whose sum is σ = 34420349948. Its totient is φ = 34420349946.

The previous prime is 34420349923. The next prime is 34420349983. The reversal of 34420349947 is 74994302443.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 34420349947 - 2³¹ = 32272866299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 34420349947.

It is not a weakly prime, because it can be changed into another prime (34420349987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17210174973 + 17210174974.

It is an arithmetic number, because the mean of its divisors is an integer number (17210174974).

Almost surely, 2^34420349947 is an apocalyptic number.

34420349947 is a deficient number, since it is larger than the sum of its proper divisors (1).

34420349947 is an equidigital number, since it uses as much as digits as its factorization.

34420349947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2612736, while the sum is 49.

The spelling of 34420349947 in words is "thirty-four billion, four hundred twenty million, three hundred forty-nine thousand, nine hundred forty-seven".