19422892142 has 4 divisors (see below), whose sum is σ = 29134338216. Its totient is φ = 9711446070.

The previous prime is 19422892141. The next prime is 19422892189. The reversal of 19422892142 is 24129822491.

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

It is a junction number, because it is equal to n+sod(n) for n = 19422892093 and 19422892102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19422892141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4855723034 + ... + 4855723037.

It is an arithmetic number, because the mean of its divisors is an integer number (7283584554).

Almost surely, 2^19422892142 is an apocalyptic number.

19422892142 is a deficient number, since it is larger than the sum of its proper divisors (9711446074).

19422892142 is an equidigital number, since it uses as much as digits as its factorization.

19422892142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9711446073.

The product of its digits is 165888, while the sum is 44.

The spelling of 19422892142 in words is "nineteen billion, four hundred twenty-two million, eight hundred ninety-two thousand, one hundred forty-two".