19425214633487 has 12 divisors (see below), whose sum is σ = 21052647417744. Its totient is φ = 17915415598080.

The previous prime is 19425214633483. The next prime is 19425214633541. The reversal of 19425214633487 is 78433641252491.

It is a happy number.

It is not a de Polignac number, because 19425214633487 - 2² = 19425214633483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19425214633481) 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 11 ways as a sum of consecutive naturals, for example, 49649939 + ... + 50039652.

It is an arithmetic number, because the mean of its divisors is an integer number (1754387284812).

Almost surely, 2^{19425214633487} is an apocalyptic number.

19425214633487 is a deficient number, since it is larger than the sum of its proper divisors (1627432784257).

19425214633487 is a wasteful number, since it uses less digits than its factorization.

19425214633487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99690770 (or 99690757 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 59.

The spelling of 19425214633487 in words is "nineteen trillion, four hundred twenty-five billion, two hundred fourteen million, six hundred thirty-three thousand, four hundred eighty-seven".