29797444489 has 2 divisors, whose sum is σ = 29797444490. Its totient is φ = 29797444488.

The previous prime is 29797444471. The next prime is 29797444553. The reversal of 29797444489 is 98444479792.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29078775625 + 718668864 = 170525^2 + 26808^2 .

It is a cyclic number.

It is not a de Polignac number, because 29797444489 - 2¹³ = 29797436297 is a prime.

It is a super-2 number, since 2×29797444489² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (29797444289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14898722244 + 14898722245.

It is an arithmetic number, because the mean of its divisors is an integer number (14898722245).

Almost surely, 2^29797444489 is an apocalyptic number.

It is an amenable number.

29797444489 is a deficient number, since it is larger than the sum of its proper divisors (1).

29797444489 is an equidigital number, since it uses as much as digits as its factorization.

29797444489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 146313216, while the sum is 67.

The spelling of 29797444489 in words is "twenty-nine billion, seven hundred ninety-seven million, four hundred forty-four thousand, four hundred eighty-nine".