19695923532 has 72 divisors (see below), whose sum is σ = 51510251520. Its totient is φ = 6339022560.

The previous prime is 19695923531. The next prime is 19695923543. The reversal of 19695923532 is 23532959691.

It is a happy number.

19695923532 is a `hidden beast` number, since 19 + 6 + 9 + 5 + 92 + 3 + 532 = 666.

It is not an unprimeable number, because it can be changed into a prime (19695923531) 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, 474469 + ... + 514307.

It is an arithmetic number, because the mean of its divisors is an integer number (715420160).

Almost surely, 2^19695923532 is an apocalyptic number.

19695923532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19695923532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25755125760).

19695923532 is an abundant number, since it is smaller than the sum of its proper divisors (31814327988).

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

19695923532 is a wasteful number, since it uses less digits than its factorization.

19695923532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40323 (or 40318 counting only the distinct ones).

The product of its digits is 3936600, while the sum is 54.

The spelling of 19695923532 in words is "nineteen billion, six hundred ninety-five million, nine hundred twenty-three thousand, five hundred thirty-two".