20586238942 has 16 divisors (see below), whose sum is σ = 30982770000. Its totient is φ = 10258678080.

The previous prime is 20586238931. The next prime is 20586238943. The reversal of 20586238942 is 24983268502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20586238943) 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, 1753809 + ... + 1765507.

It is an arithmetic number, because the mean of its divisors is an integer number (1936423125).

Almost surely, 2^20586238942 is an apocalyptic number.

20586238942 is a deficient number, since it is larger than the sum of its proper divisors (10396531058).

20586238942 is a wasteful number, since it uses less digits than its factorization.

20586238942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14571.

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 20586238942 in words is "twenty billion, five hundred eighty-six million, two hundred thirty-eight thousand, nine hundred forty-two".