29845756645 has 8 divisors (see below), whose sum is σ = 35830706040. Its totient is φ = 23866073280.

The previous prime is 29845756637. The next prime is 29845756679. The reversal of 29845756645 is 54665754892.

It can be written as a sum of positive squares in 4 ways, for example, as 815730721 + 29030025924 = 28561^2 + 170382^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 29845756645 - 2³ = 29845756637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1304026 + ... + 1326715.

It is an arithmetic number, because the mean of its divisors is an integer number (4478838255).

Almost surely, 2^29845756645 is an apocalyptic number.

It is an amenable number.

29845756645 is a deficient number, since it is larger than the sum of its proper divisors (5984949395).

29845756645 is a wasteful number, since it uses less digits than its factorization.

29845756645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2633015.

The product of its digits is 72576000, while the sum is 61.

The spelling of 29845756645 in words is "twenty-nine billion, eight hundred forty-five million, seven hundred fifty-six thousand, six hundred forty-five".