20192710898 has 4 divisors (see below), whose sum is σ = 30289066350. Its totient is φ = 10096355448.

The previous prime is 20192710897. The next prime is 20192710907. The reversal of 20192710898 is 89801729102.

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

It can be written as a sum of positive squares in only one way, i.e., 15022669489 + 5170041409 = 122567^2 + 71903^2 .

It is not an unprimeable number, because it can be changed into a prime (20192710897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5048177723 + ... + 5048177726.

Almost surely, 2^20192710898 is an apocalyptic number.

20192710898 is a deficient number, since it is larger than the sum of its proper divisors (10096355452).

20192710898 is a wasteful number, since it uses less digits than its factorization.

20192710898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10096355451.

The product of its (nonzero) digits is 145152, while the sum is 47.

The spelling of 20192710898 in words is "twenty billion, one hundred ninety-two million, seven hundred ten thousand, eight hundred ninety-eight".