19407839242 has 8 divisors (see below), whose sum is σ = 31758282432. Its totient is φ = 8821745100.

The previous prime is 19407839233. The next prime is 19407839371. The reversal of 19407839242 is 24293870491.

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

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, 441087234 + ... + 441087277.

It is an arithmetic number, because the mean of its divisors is an integer number (3969785304).

Almost surely, 2^19407839242 is an apocalyptic number.

19407839242 is a deficient number, since it is larger than the sum of its proper divisors (12350443190).

19407839242 is a wasteful number, since it uses less digits than its factorization.

19407839242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882174524.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 19407839242 in words is "nineteen billion, four hundred seven million, eight hundred thirty-nine thousand, two hundred forty-two".