19633313532 has 72 divisors (see below), whose sum is σ = 56425181904. Its totient is φ = 5279543808.

The previous prime is 19633313507. The next prime is 19633313561. The reversal of 19633313532 is 23531333691.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 972063 + ... + 992054.

It is an arithmetic number, because the mean of its divisors is an integer number (783683082).

Almost surely, 2^19633313532 is an apocalyptic number.

19633313532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19633313532 is an abundant number, since it is smaller than the sum of its proper divisors (36791868372).

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

19633313532 is a wasteful number, since it uses less digits than its factorization.

19633313532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964155 (or 1964146 counting only the distinct ones).

The product of its digits is 131220, while the sum is 39.

The spelling of 19633313532 in words is "nineteen billion, six hundred thirty-three million, three hundred thirteen thousand, five hundred thirty-two".