19437575049 has 16 divisors (see below), whose sum is σ = 28801569600. Its totient is φ = 12956060448.

The previous prime is 19437574993. The next prime is 19437575083. The reversal of 19437575049 is 94057573491.

It is not a de Polignac number, because 19437575049 - 2⁹ = 19437574537 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19437574986 and 19437575004.

It is not an unprimeable number, because it can be changed into a prime (19437575089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96157 + ... + 219365.

It is an arithmetic number, because the mean of its divisors is an integer number (1800098100).

Almost surely, 2^19437575049 is an apocalyptic number.

It is an amenable number.

19437575049 is a deficient number, since it is larger than the sum of its proper divisors (9363994551).

19437575049 is a wasteful number, since it uses less digits than its factorization.

19437575049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129061 (or 129055 counting only the distinct ones).

The product of its (nonzero) digits is 4762800, while the sum is 54.

The spelling of 19437575049 in words is "nineteen billion, four hundred thirty-seven million, five hundred seventy-five thousand, forty-nine".