20299627949 has 8 divisors (see below), whose sum is σ = 21369372000. Its totient is φ = 19230018192.

The previous prime is 20299627939. The next prime is 20299627991. The reversal of 20299627949 is 94972699202.

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

It is a cyclic number.

It is not a de Polignac number, because 20299627949 - 2¹² = 20299623853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20299627939) 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 7 ways as a sum of consecutive naturals, for example, 472247 + ... + 513435.

It is an arithmetic number, because the mean of its divisors is an integer number (2671171500).

Almost surely, 2^20299627949 is an apocalyptic number.

It is an amenable number.

20299627949 is a deficient number, since it is larger than the sum of its proper divisors (1069744051).

20299627949 is a wasteful number, since it uses less digits than its factorization.

20299627949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67147.

The product of its (nonzero) digits is 8817984, while the sum is 59.

The spelling of 20299627949 in words is "twenty billion, two hundred ninety-nine million, six hundred twenty-seven thousand, nine hundred forty-nine".