34020250643 has 2 divisors, whose sum is σ = 34020250644. Its totient is φ = 34020250642.

The previous prime is 34020250631. The next prime is 34020250661. The reversal of 34020250643 is 34605202043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 34020250643 - 2²⁶ = 33953141779 is a prime.

It is a super-3 number, since 3×34020250643³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (34020250543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17010125321 + 17010125322.

It is an arithmetic number, because the mean of its divisors is an integer number (17010125322).

Almost surely, 2^34020250643 is an apocalyptic number.

34020250643 is a deficient number, since it is larger than the sum of its proper divisors (1).

34020250643 is an equidigital number, since it uses as much as digits as its factorization.

34020250643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 34020250643 its reverse (34605202043), we get a palindrome (68625452686).

The spelling of 34020250643 in words is "thirty-four billion, twenty million, two hundred fifty thousand, six hundred forty-three".