29438424715631 has 2 divisors, whose sum is σ = 29438424715632. Its totient is φ = 29438424715630.

The previous prime is 29438424715607. The next prime is 29438424715643. The reversal of 29438424715631 is 13651742483492.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29438424715631 is a prime.

It is a super-2 number, since 2×29438424715631² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29438424715031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14719212357815 + 14719212357816.

It is an arithmetic number, because the mean of its divisors is an integer number (14719212357816).

Almost surely, 2^{29438424715631} is an apocalyptic number.

29438424715631 is a deficient number, since it is larger than the sum of its proper divisors (1).

29438424715631 is an equidigital number, since it uses as much as digits as its factorization.

29438424715631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34836480, while the sum is 59.

The spelling of 29438424715631 in words is "twenty-nine trillion, four hundred thirty-eight billion, four hundred twenty-four million, seven hundred fifteen thousand, six hundred thirty-one".