29749428417 has 4 divisors (see below), whose sum is σ = 39665904560. Its totient is φ = 19832952276.

The previous prime is 29749428329. The next prime is 29749428427. The reversal of 29749428417 is 71482494792.

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 29749428417 - 2¹⁵ = 29749395649 is a prime.

It is a super-2 number, since 2×29749428417² (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 (29749428427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4958238067 + ... + 4958238072.

It is an arithmetic number, because the mean of its divisors is an integer number (9916476140).

Almost surely, 2^29749428417 is an apocalyptic number.

It is an amenable number.

29749428417 is a deficient number, since it is larger than the sum of its proper divisors (9916476143).

29749428417 is an equidigital number, since it uses as much as digits as its factorization.

29749428417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9916476142.

The product of its digits is 8128512, while the sum is 57.

The spelling of 29749428417 in words is "twenty-nine billion, seven hundred forty-nine million, four hundred twenty-eight thousand, four hundred seventeen".