34890989851 has 2 divisors, whose sum is σ = 34890989852. Its totient is φ = 34890989850.

The previous prime is 34890989807. The next prime is 34890989897. The reversal of 34890989851 is 15898909843.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 34890989851 - 2⁹ = 34890989339 is a prime.

It is not a weakly prime, because it can be changed into another prime (34890989801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17445494925 + 17445494926.

It is an arithmetic number, because the mean of its divisors is an integer number (17445494926).

Almost surely, 2^34890989851 is an apocalyptic number.

34890989851 is a deficient number, since it is larger than the sum of its proper divisors (1).

34890989851 is an equidigital number, since it uses as much as digits as its factorization.

34890989851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22394880, while the sum is 64.

The spelling of 34890989851 in words is "thirty-four billion, eight hundred ninety million, nine hundred eighty-nine thousand, eight hundred fifty-one".