19470782637 has 48 divisors (see below), whose sum is σ = 29305635840. Its totient is φ = 12449039616.

The previous prime is 19470782633. The next prime is 19470782659. The reversal of 19470782637 is 73628707491.

It is not a de Polignac number, because 19470782637 - 2² = 19470782633 is a prime.

It is a super-2 number, since 2×19470782637² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19470782633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4576003 + ... + 4580255.

It is an arithmetic number, because the mean of its divisors is an integer number (610534080).

Almost surely, 2^19470782637 is an apocalyptic number.

It is an amenable number.

19470782637 is a deficient number, since it is larger than the sum of its proper divisors (9834853203).

19470782637 is a wasteful number, since it uses less digits than its factorization.

19470782637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4522 (or 4519 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 54.

The spelling of 19470782637 in words is "nineteen billion, four hundred seventy million, seven hundred eighty-two thousand, six hundred thirty-seven".