19914081244 has 12 divisors (see below), whose sum is σ = 35791524664. Its totient is φ = 9687931344.

The previous prime is 19914081223. The next prime is 19914081269. The reversal of 19914081244 is 44218041991.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 19914081244.

It is a congruent number.

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, 67277154 + ... + 67277449.

Almost surely, 2^19914081244 is an apocalyptic number.

It is an amenable number.

19914081244 is a deficient number, since it is larger than the sum of its proper divisors (15877443420).

19914081244 is a wasteful number, since it uses less digits than its factorization.

19914081244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134554644 (or 134554642 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The spelling of 19914081244 in words is "nineteen billion, nine hundred fourteen million, eighty-one thousand, two hundred forty-four".