19943915150 has 12 divisors (see below), whose sum is σ = 37095682272. Its totient is φ = 7977566040.

The previous prime is 19943915129. The next prime is 19943915153. The reversal of 19943915150 is 5151934991.

It is a junction number, because it is equal to n+sod(n) for n = 19943915095 and 19943915104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19943915153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 199439102 + ... + 199439201.

It is an arithmetic number, because the mean of its divisors is an integer number (3091306856).

Almost surely, 2^19943915150 is an apocalyptic number.

19943915150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19943915150 is a deficient number, since it is larger than the sum of its proper divisors (17151767122).

19943915150 is a wasteful number, since it uses less digits than its factorization.

19943915150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398878315 (or 398878310 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 47.

The spelling of 19943915150 in words is "nineteen billion, nine hundred forty-three million, nine hundred fifteen thousand, one hundred fifty".