29149991533 has 16 divisors (see below), whose sum is σ = 32431603120. Its totient is φ = 26180376768.

The previous prime is 29149991513. The next prime is 29149991543. The reversal of 29149991533 is 33519994192.

It can be written as a sum of positive squares in 8 ways, for example, as 15814823049 + 13335168484 = 125757^2 + 115478^2 .

It is not a de Polignac number, because 29149991533 - 2²¹ = 29147894381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29149991503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98010 + ... + 260587.

It is an arithmetic number, because the mean of its divisors is an integer number (2026975195).

Almost surely, 2^29149991533 is an apocalyptic number.

It is an amenable number.

29149991533 is a deficient number, since it is larger than the sum of its proper divisors (3281611587).

29149991533 is an equidigital number, since it uses as much as digits as its factorization.

29149991533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358673 (or 358647 counting only the distinct ones).

The product of its digits is 2361960, while the sum is 55.

The spelling of 29149991533 in words is "twenty-nine billion, one hundred forty-nine million, nine hundred ninety-one thousand, five hundred thirty-three".