29499117453481 has 9 divisors (see below), whose sum is σ = 31942907781669. Its totient is φ = 27229889396736.

The previous prime is 29499117453479. The next prime is 29499117453511. The reversal of 29499117453481 is 18435471199492.

The square root of 29499117453481 is 5431309.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 203528201881 + 29295589251600 = 451141^2 + 5412540^2 .

It is not a de Polignac number, because 29499117453481 - 2¹ = 29499117453479 is a prime.

It is a super-2 number, since 2×29499117453481² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29499117453181) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 70398121 + ... + 70815913.

It is an arithmetic number, because the mean of its divisors is an integer number (3549211975741).

Almost surely, 2^{29499117453481} is an apocalyptic number.

29499117453481 is the 5431309-th square number.

29499117453481 is the 2715655-th centered octagonal number.

It is an amenable number.

29499117453481 is a deficient number, since it is larger than the sum of its proper divisors (2443790328188).

29499117453481 is an frugal number, since it uses more digits than its factorization.

29499117453481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835612 (or 417806 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 67.

The spelling of 29499117453481 in words is "twenty-nine trillion, four hundred ninety-nine billion, one hundred seventeen million, four hundred fifty-three thousand, four hundred eighty-one".