32456134578 has 128 divisors (see below), whose sum is σ = 78628257792. Its totient is φ = 8731331136.

The previous prime is 32456134577. The next prime is 32456134589. The reversal of 32456134578 is 87543165423.

It is not an unprimeable number, because it can be changed into a prime (32456134577) 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 63 ways as a sum of consecutive naturals, for example, 29424775 + ... + 29425877.

It is an arithmetic number, because the mean of its divisors is an integer number (614283264).

Almost surely, 2^32456134578 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32456134578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39314128896).

32456134578 is an abundant number, since it is smaller than the sum of its proper divisors (46172123214).

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

32456134578 is a wasteful number, since it uses less digits than its factorization.

32456134578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588.

The product of its digits is 2419200, while the sum is 48.

The spelling of 32456134578 in words is "thirty-two billion, four hundred fifty-six million, one hundred thirty-four thousand, five hundred seventy-eight".