20445269039 has 16 divisors (see below), whose sum is σ = 22573593504. Its totient is φ = 18398016000.

The previous prime is 20445269003. The next prime is 20445269041. The reversal of 20445269039 is 93096254402.

It is not a de Polignac number, because 20445269039 - 2²⁸ = 20176833583 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 (20445269099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256139 + ... + 326339.

It is an arithmetic number, because the mean of its divisors is an integer number (1410849594).

Almost surely, 2^20445269039 is an apocalyptic number.

20445269039 is a deficient number, since it is larger than the sum of its proper divisors (2128324465).

20445269039 is a wasteful number, since it uses less digits than its factorization.

20445269039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70778.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 20445269039 in words is "twenty billion, four hundred forty-five million, two hundred sixty-nine thousand, thirty-nine".