29458591649 has 4 divisors (see below), whose sum is σ = 29459403540. Its totient is φ = 29457779760.

The previous prime is 29458591639. The next prime is 29458591693. The reversal of 29458591649 is 94619585492.

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 14621646400 + 14836945249 = 120920^2 + 121807^2 .

It is a cyclic number.

It is not a de Polignac number, because 29458591649 - 2¹⁶ = 29458526113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29458591591 and 29458591600.

It is not an unprimeable number, because it can be changed into a prime (29458591639) 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, 348842 + ... + 424979.

It is an arithmetic number, because the mean of its divisors is an integer number (7364850885).

Almost surely, 2^29458591649 is an apocalyptic number.

It is an amenable number.

29458591649 is a deficient number, since it is larger than the sum of its proper divisors (811891).

29458591649 is an equidigital number, since it uses as much as digits as its factorization.

29458591649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811890.

The product of its digits is 27993600, while the sum is 62.

The spelling of 29458591649 in words is "twenty-nine billion, four hundred fifty-eight million, five hundred ninety-one thousand, six hundred forty-nine".