32192447640 has 32 divisors (see below), whose sum is σ = 96577343280. Its totient is φ = 8584652672.

The previous prime is 32192447633. The next prime is 32192447641. The reversal of 32192447640 is 4674429123.

It is a junction number, because it is equal to n+sod(n) for n = 32192447592 and 32192447601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32192447641) 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 7 ways as a sum of consecutive naturals, for example, 134135079 + ... + 134135318.

Almost surely, 2^32192447640 is an apocalyptic number.

32192447640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32192447640 is an abundant number, since it is smaller than the sum of its proper divisors (64384895640).

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

32192447640 is a wasteful number, since it uses less digits than its factorization.

32192447640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268270411 (or 268270407 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The spelling of 32192447640 in words is "thirty-two billion, one hundred ninety-two million, four hundred forty-seven thousand, six hundred forty".