19140687272 has 16 divisors (see below), whose sum is σ = 41015758560. Its totient is φ = 8203151664.

The previous prime is 19140687263. The next prime is 19140687317. The reversal of 19140687272 is 27278604191.

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, 170898938 + ... + 170899049.

It is an arithmetic number, because the mean of its divisors is an integer number (2563484910).

Almost surely, 2^19140687272 is an apocalyptic number.

It is an amenable number.

19140687272 is an abundant number, since it is smaller than the sum of its proper divisors (21875071288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19140687272 is a wasteful number, since it uses less digits than its factorization.

19140687272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341798000 (or 341797996 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 19140687272 in words is "nineteen billion, one hundred forty million, six hundred eighty-seven thousand, two hundred seventy-two".