20070506449 has 4 divisors (see below), whose sum is σ = 22937721664. Its totient is φ = 17203291236.

The previous prime is 20070506447. The next prime is 20070506471. The reversal of 20070506449 is 94460507002.

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 a cyclic number.

It is not a de Polignac number, because 20070506449 - 2¹ = 20070506447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20070506447) by changing a digit.

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, 1433607597 + ... + 1433607610.

It is an arithmetic number, because the mean of its divisors is an integer number (5734430416).

Almost surely, 2^20070506449 is an apocalyptic number.

It is an amenable number.

20070506449 is a deficient number, since it is larger than the sum of its proper divisors (2867215215).

20070506449 is an equidigital number, since it uses as much as digits as its factorization.

20070506449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2867215214.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 20070506449 in words is "twenty billion, seventy million, five hundred six thousand, four hundred forty-nine".