19242616557 has 8 divisors (see below), whose sum is σ = 27166046976. Its totient is φ = 12073798592.

The previous prime is 19242616553. The next prime is 19242616579. The reversal of 19242616557 is 75561624291.

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

It is a cyclic number.

It is not a de Polignac number, because 19242616557 - 2² = 19242616553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19242616553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188653053 + ... + 188653154.

It is an arithmetic number, because the mean of its divisors is an integer number (3395755872).

Almost surely, 2^19242616557 is an apocalyptic number.

19242616557 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

19242616557 is a deficient number, since it is larger than the sum of its proper divisors (7923430419).

19242616557 is a wasteful number, since it uses less digits than its factorization.

19242616557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377306227.

The product of its digits is 907200, while the sum is 48.

The spelling of 19242616557 in words is "nineteen billion, two hundred forty-two million, six hundred sixteen thousand, five hundred fifty-seven".