20192018522 has 8 divisors (see below), whose sum is σ = 32617876116. Its totient is φ = 9319393152.

The previous prime is 20192018513. The next prime is 20192018563. The reversal of 20192018522 is 22581029102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20143841041 + 48177481 = 141929^2 + 6941^2 .

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

It is a super-2 number, since 2×20192018522² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388308023 + ... + 388308074.

Almost surely, 2^20192018522 is an apocalyptic number.

20192018522 is a deficient number, since it is larger than the sum of its proper divisors (12425857594).

20192018522 is a wasteful number, since it uses less digits than its factorization.

20192018522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776616112.

The product of its (nonzero) digits is 5760, while the sum is 32.

The spelling of 20192018522 in words is "twenty billion, one hundred ninety-two million, eighteen thousand, five hundred twenty-two".