20058978959 has 4 divisors (see below), whose sum is σ = 20115803616. Its totient is φ = 20002154304.

The previous prime is 20058978943. The next prime is 20058978967. The reversal of 20058978959 is 95987985002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20058978959 - 2⁴ = 20058978943 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 (20058278959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28411799 + ... + 28412504.

It is an arithmetic number, because the mean of its divisors is an integer number (5028950904).

Almost surely, 2^20058978959 is an apocalyptic number.

20058978959 is a deficient number, since it is larger than the sum of its proper divisors (56824657).

20058978959 is an equidigital number, since it uses as much as digits as its factorization.

20058978959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56824656.

The product of its (nonzero) digits is 16329600, while the sum is 62.

The spelling of 20058978959 in words is "twenty billion, fifty-eight million, nine hundred seventy-eight thousand, nine hundred fifty-nine".