32645519742 has 64 divisors (see below), whose sum is σ = 73646991360. Its totient is φ = 9557481600.

The previous prime is 32645519737. The next prime is 32645519743. The reversal of 32645519742 is 24791554623.

It is a junction number, because it is equal to n+sod(n) for n = 32645519691 and 32645519700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32645519743) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1241184 + ... + 1267212.

It is an arithmetic number, because the mean of its divisors is an integer number (1150734240).

Almost surely, 2^32645519742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32645519742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36823495680).

32645519742 is an abundant number, since it is smaller than the sum of its proper divisors (41001471618).

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

32645519742 is a wasteful number, since it uses less digits than its factorization.

32645519742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26689.

The product of its digits is 1814400, while the sum is 48.

The spelling of 32645519742 in words is "thirty-two billion, six hundred forty-five million, five hundred nineteen thousand, seven hundred forty-two".