19612953605952 has 84 divisors (see below), whose sum is σ = 64247988908896. Its totient is φ = 5603701029120.

The previous prime is 19612953605933. The next prime is 19612953606047. The reversal of 19612953605952 is 25950635921691.

It is a happy number.

19612953605952 is a `hidden beast` number, since 1 + 9 + 6 + 1 + 2 + 9 + 5 + 36 + 0 + 595 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (84).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 19612953605952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2432157874 + ... + 2432165937.

Almost surely, 2^{19612953605952} is an apocalyptic number.

19612953605952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19612953605952 is an abundant number, since it is smaller than the sum of its proper divisors (44635035302944).

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

19612953605952 is a wasteful number, since it uses less digits than its factorization.

19612953605952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4864323836 (or 4864323823 counting only the distinct ones).

The product of its (nonzero) digits is 39366000, while the sum is 63.

The spelling of 19612953605952 in words is "nineteen trillion, six hundred twelve billion, nine hundred fifty-three million, six hundred five thousand, nine hundred fifty-two".