29954842637789 has 2 divisors, whose sum is σ = 29954842637790. Its totient is φ = 29954842637788.

The previous prime is 29954842637767. The next prime is 29954842637911. The reversal of 29954842637789 is 98773624845992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23370050410564 + 6584792227225 = 4834258^2 + 2566085^2 .

It is a cyclic number.

It is not a de Polignac number, because 29954842637789 - 2¹² = 29954842633693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29954842637389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14977421318894 + 14977421318895.

It is an arithmetic number, because the mean of its divisors is an integer number (14977421318895).

Almost surely, 2^{29954842637789} is an apocalyptic number.

It is an amenable number.

29954842637789 is a deficient number, since it is larger than the sum of its proper divisors (1).

29954842637789 is an equidigital number, since it uses as much as digits as its factorization.

29954842637789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13168189440, while the sum is 83.

The spelling of 29954842637789 in words is "twenty-nine trillion, nine hundred fifty-four billion, eight hundred forty-two million, six hundred thirty-seven thousand, seven hundred eighty-nine".