34144402991 has 2 divisors, whose sum is σ = 34144402992. Its totient is φ = 34144402990.

The previous prime is 34144402987. The next prime is 34144403021. The reversal of 34144402991 is 19920444143.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 34144402991 - 2² = 34144402987 is a prime.

It is a super-2 number, since 2×34144402991² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34144402951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17072201495 + 17072201496.

It is an arithmetic number, because the mean of its divisors is an integer number (17072201496).

Almost surely, 2^34144402991 is an apocalyptic number.

34144402991 is a deficient number, since it is larger than the sum of its proper divisors (1).

34144402991 is an equidigital number, since it uses as much as digits as its factorization.

34144402991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 34144402991 in words is "thirty-four billion, one hundred forty-four million, four hundred two thousand, nine hundred ninety-one".