19942269916 has 24 divisors (see below), whose sum is σ = 35851586400. Its totient is φ = 9699100992.

The previous prime is 19942269889. The next prime is 19942269923. The reversal of 19942269916 is 61996224991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 628161 + ... + 659143.

It is an arithmetic number, because the mean of its divisors is an integer number (1493816100).

Almost surely, 2^19942269916 is an apocalyptic number.

It is an amenable number.

19942269916 is a deficient number, since it is larger than the sum of its proper divisors (15909316484).

19942269916 is a wasteful number, since it uses less digits than its factorization.

19942269916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35373 (or 35371 counting only the distinct ones).

The product of its digits is 3779136, while the sum is 58.

The spelling of 19942269916 in words is "nineteen billion, nine hundred forty-two million, two hundred sixty-nine thousand, nine hundred sixteen".