19487637364 has 48 divisors (see below), whose sum is σ = 37110721536. Its totient is φ = 8900438400.

The previous prime is 19487637361. The next prime is 19487637373. The reversal of 19487637364 is 46373678491.

It is a junction number, because it is equal to n+sod(n) for n = 19487637299 and 19487637308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19487637361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8183454 + ... + 8185834.

It is an arithmetic number, because the mean of its divisors is an integer number (773140032).

Almost surely, 2^19487637364 is an apocalyptic number.

It is an amenable number.

19487637364 is a deficient number, since it is larger than the sum of its proper divisors (17623084172).

19487637364 is a wasteful number, since it uses less digits than its factorization.

19487637364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3976 (or 3974 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 58.

The spelling of 19487637364 in words is "nineteen billion, four hundred eighty-seven million, six hundred thirty-seven thousand, three hundred sixty-four".