29122734505 has 4 divisors (see below), whose sum is σ = 34947281412. Its totient is φ = 23298187600.

The previous prime is 29122734469. The next prime is 29122734533. The reversal of 29122734505 is 50543722192.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16351248384 + 12771486121 = 127872^2 + 113011^2 .

It is not a de Polignac number, because 29122734505 - 2¹³ = 29122726313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2912273446 + ... + 2912273455.

It is an arithmetic number, because the mean of its divisors is an integer number (8736820353).

Almost surely, 2^29122734505 is an apocalyptic number.

It is an amenable number.

29122734505 is a deficient number, since it is larger than the sum of its proper divisors (5824546907).

29122734505 is an equidigital number, since it uses as much as digits as its factorization.

29122734505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5824546906.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 29122734505 in words is "twenty-nine billion, one hundred twenty-two million, seven hundred thirty-four thousand, five hundred five".