29157822513 has 6 divisors (see below), whose sum is σ = 42116854754. Its totient is φ = 19438548336.

The previous prime is 29157822497. The next prime is 29157822557. The reversal of 29157822513 is 31522875192.

29157822513 is a `hidden beast` number, since 2 + 9 + 1 + 57 + 82 + 2 + 513 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16824165264 + 12333657249 = 129708^2 + 111057^2 .

It is not a de Polignac number, because 29157822513 - 2⁴ = 29157822497 is a prime.

It is a super-2 number, since 2×29157822513² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29157822013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1619879020 + ... + 1619879037.

Almost surely, 2^29157822513 is an apocalyptic number.

It is an amenable number.

29157822513 is a deficient number, since it is larger than the sum of its proper divisors (12959032241).

29157822513 is a wasteful number, since it uses less digits than its factorization.

29157822513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3239758063 (or 3239758060 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The spelling of 29157822513 in words is "twenty-nine billion, one hundred fifty-seven million, eight hundred twenty-two thousand, five hundred thirteen".