20367294518 has 4 divisors (see below), whose sum is σ = 30550941780. Its totient is φ = 10183647258.

The previous prime is 20367294463. The next prime is 20367294527. The reversal of 20367294518 is 81549276302.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5091823628 + ... + 5091823631.

It is an arithmetic number, because the mean of its divisors is an integer number (7637735445).

It is a 1-persistent number, because it is pandigital, but 2⋅20367294518 = 40734589036 is not.

Almost surely, 2^20367294518 is an apocalyptic number.

20367294518 is a deficient number, since it is larger than the sum of its proper divisors (10183647262).

20367294518 is a wasteful number, since it uses less digits than its factorization.

20367294518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10183647261.

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

The spelling of 20367294518 in words is "twenty billion, three hundred sixty-seven million, two hundred ninety-four thousand, five hundred eighteen".