19695809352132 has 72 divisors (see below), whose sum is σ = 49977264576512. Its totient is φ = 6540137769600.

The previous prime is 19695809352047. The next prime is 19695809352139. The reversal of 19695809352132 is 23125390859691.

19695809352132 is a `hidden beast` number, since 1 + 9 + 6 + 9 + 580 + 9 + 35 + 2 + 13 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 19695809352132.

It is not an unprimeable number, because it can be changed into a prime (19695809352139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72224157 + ... + 72496347.

Almost surely, 2^{19695809352132} is an apocalyptic number.

19695809352132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19695809352132 is an abundant number, since it is smaller than the sum of its proper divisors (30281455224380).

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

19695809352132 is a wasteful number, since it uses less digits than its factorization.

19695809352132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279889 (or 279884 counting only the distinct ones).

The product of its (nonzero) digits is 31492800, while the sum is 63.

The spelling of 19695809352132 in words is "nineteen trillion, six hundred ninety-five billion, eight hundred nine million, three hundred fifty-two thousand, one hundred thirty-two".