19942269915 has 8 divisors (see below), whose sum is σ = 31907631888. Its totient is φ = 10635877280.

The previous prime is 19942269889. The next prime is 19942269923. The reversal of 19942269915 is 51996224991.

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

It is not a de Polignac number, because 19942269915 - 2¹⁶ = 19942204379 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 664742316 + ... + 664742345.

It is an arithmetic number, because the mean of its divisors is an integer number (3988453986).

Almost surely, 2^19942269915 is an apocalyptic number.

19942269915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19942269915 is a deficient number, since it is larger than the sum of its proper divisors (11965361973).

19942269915 is a wasteful number, since it uses less digits than its factorization.

19942269915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329484669.

The product of its digits is 3149280, while the sum is 57.

The spelling of 19942269915 in words is "nineteen billion, nine hundred forty-two million, two hundred sixty-nine thousand, nine hundred fifteen".