2635935434989 has 2 divisors, whose sum is σ = 2635935434990. Its totient is φ = 2635935434988.

The previous prime is 2635935434959. The next prime is 2635935435061. The reversal of 2635935434989 is 9894345395362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2041232266089 + 594703168900 = 1428717^2 + 771170^2 .

It is a cyclic number.

It is not a de Polignac number, because 2635935434989 - 2⁷ = 2635935434861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2635935434959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1317967717494 + 1317967717495.

It is an arithmetic number, because the mean of its divisors is an integer number (1317967717495).

Almost surely, 2^{2635935434989} is an apocalyptic number.

It is an amenable number.

2635935434989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2635935434989 is an equidigital number, since it uses as much as digits as its factorization.

2635935434989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 755827200, while the sum is 70.

The spelling of 2635935434989 in words is "two trillion, six hundred thirty-five billion, nine hundred thirty-five million, four hundred thirty-four thousand, nine hundred eighty-nine".