29498878945 has 4 divisors (see below), whose sum is σ = 35398654740. Its totient is φ = 23599103152.

The previous prime is 29498878933. The next prime is 29498878979. The reversal of 29498878945 is 54987889492.

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 8538499216 + 20960379729 = 92404^2 + 144777^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29498878945 is a prime.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2949887890 + ... + 2949887899.

It is an arithmetic number, because the mean of its divisors is an integer number (8849663685).

Almost surely, 2^29498878945 is an apocalyptic number.

It is an amenable number.

29498878945 is a deficient number, since it is larger than the sum of its proper divisors (5899775795).

29498878945 is an equidigital number, since it uses as much as digits as its factorization.

29498878945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5899775794.

The product of its digits is 418037760, while the sum is 73.

The spelling of 29498878945 in words is "twenty-nine billion, four hundred ninety-eight million, eight hundred seventy-eight thousand, nine hundred forty-five".