19242152426 has 8 divisors (see below), whose sum is σ = 32986547040. Its totient is φ = 8246636748.

The previous prime is 19242152407. The next prime is 19242152519. The reversal of 19242152426 is 62425124291.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 19242152426.

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, 687219716 + ... + 687219743.

It is an arithmetic number, because the mean of its divisors is an integer number (4123318380).

Almost surely, 2^19242152426 is an apocalyptic number.

19242152426 is a deficient number, since it is larger than the sum of its proper divisors (13744394614).

19242152426 is a wasteful number, since it uses less digits than its factorization.

19242152426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374439468.

The product of its digits is 69120, while the sum is 38.

The spelling of 19242152426 in words is "nineteen billion, two hundred forty-two million, one hundred fifty-two thousand, four hundred twenty-six".