29518057193 has 4 divisors (see below), whose sum is σ = 30801451008. Its totient is φ = 28234663380.

The previous prime is 29518057181. The next prime is 29518057213. The reversal of 29518057193 is 39175081592.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 29518057193 - 2¹⁴ = 29518040809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29518057103) 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 in 3 ways as a sum of consecutive naturals, for example, 641696873 + ... + 641696918.

It is an arithmetic number, because the mean of its divisors is an integer number (7700362752).

Almost surely, 2^29518057193 is an apocalyptic number.

29518057193 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

29518057193 is a deficient number, since it is larger than the sum of its proper divisors (1283393815).

29518057193 is a wasteful number, since it uses less digits than its factorization.

29518057193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283393814.

The product of its (nonzero) digits is 680400, while the sum is 50.

The spelling of 29518057193 in words is "twenty-nine billion, five hundred eighteen million, fifty-seven thousand, one hundred ninety-three".