20502039039 has 8 divisors (see below), whose sum is σ = 27347748480. Its totient is φ = 13662177816.

The previous prime is 20502039037. The next prime is 20502039073. The reversal of 20502039039 is 93093020502.

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

It is not a de Polignac number, because 20502039039 - 2¹ = 20502039037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20502039037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1453867 + ... + 1467900.

It is an arithmetic number, because the mean of its divisors is an integer number (3418468560).

Almost surely, 2^20502039039 is an apocalyptic number.

20502039039 is a deficient number, since it is larger than the sum of its proper divisors (6845709441).

20502039039 is a wasteful number, since it uses less digits than its factorization.

20502039039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2924109.

The product of its (nonzero) digits is 14580, while the sum is 33.

The spelling of 20502039039 in words is "twenty billion, five hundred two million, thirty-nine thousand, thirty-nine".