32397467878 has 4 divisors (see below), whose sum is σ = 48596201820. Its totient is φ = 16198733938.

The previous prime is 32397467873. The next prime is 32397467923. The reversal of 32397467878 is 87876479323.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87876479323 = 1429 ⋅61495087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32397467873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8099366968 + ... + 8099366971.

It is an arithmetic number, because the mean of its divisors is an integer number (12149050455).

Almost surely, 2^32397467878 is an apocalyptic number.

32397467878 is a deficient number, since it is larger than the sum of its proper divisors (16198733942).

32397467878 is a wasteful number, since it uses less digits than its factorization.

32397467878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16198733941.

The product of its digits is 85349376, while the sum is 64.

The spelling of 32397467878 in words is "thirty-two billion, three hundred ninety-seven million, four hundred sixty-seven thousand, eight hundred seventy-eight".