19400575016 has 32 divisors (see below), whose sum is σ = 36765805440. Its totient is φ = 9596441088.

The previous prime is 19400575013. The next prime is 19400575027. The reversal of 19400575016 is 61057500491.

It is not an unprimeable number, because it can be changed into a prime (19400575013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3708995 + ... + 3714221.

It is an arithmetic number, because the mean of its divisors is an integer number (1148931420).

Almost surely, 2^19400575016 is an apocalyptic number.

It is an amenable number.

19400575016 is a deficient number, since it is larger than the sum of its proper divisors (17365230424).

19400575016 is a wasteful number, since it uses less digits than its factorization.

19400575016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10113 (or 10109 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 38.

The spelling of 19400575016 in words is "nineteen billion, four hundred million, five hundred seventy-five thousand, sixteen".