20317854926 has 4 divisors (see below), whose sum is σ = 30476782392. Its totient is φ = 10158927462.

The previous prime is 20317854901. The next prime is 20317854937. The reversal of 20317854926 is 62945871302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62945871302 = 2 ⋅31472935651.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5079463730 + ... + 5079463733.

It is an arithmetic number, because the mean of its divisors is an integer number (7619195598).

It is a 1-persistent number, because it is pandigital, but 2⋅20317854926 = 40635709852 is not.

Almost surely, 2^20317854926 is an apocalyptic number.

20317854926 is a deficient number, since it is larger than the sum of its proper divisors (10158927466).

20317854926 is a wasteful number, since it uses less digits than its factorization.

20317854926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10158927465.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 20317854926 in words is "twenty billion, three hundred seventeen million, eight hundred fifty-four thousand, nine hundred twenty-six".