32279697828 has 120 divisors (see below), whose sum is σ = 97033349952. Its totient is φ = 9166084416.

The previous prime is 32279697799. The next prime is 32279697839. The reversal of 32279697828 is 82879697223.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 326026 + ... + 413342.

Almost surely, 2^32279697828 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32279697828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48516674976).

32279697828 is an abundant number, since it is smaller than the sum of its proper divisors (64753652124).

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

32279697828 is a wasteful number, since it uses less digits than its factorization.

32279697828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87503 (or 87492 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 63.

The spelling of 32279697828 in words is "thirty-two billion, two hundred seventy-nine million, six hundred ninety-seven thousand, eight hundred twenty-eight".