32855518397 has 4 divisors (see below), whose sum is σ = 35382865980. Its totient is φ = 30328170816.

The previous prime is 32855518369. The next prime is 32855518417. The reversal of 32855518397 is 79381555823.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14137447801 + 18718070596 = 118901^2 + 136814^2 .

It is a cyclic number.

It is not a de Polignac number, because 32855518397 - 2³² = 28560551101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32855515397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1263673772 + ... + 1263673797.

It is an arithmetic number, because the mean of its divisors is an integer number (8845716495).

Almost surely, 2^32855518397 is an apocalyptic number.

It is an amenable number.

32855518397 is a deficient number, since it is larger than the sum of its proper divisors (2527347583).

32855518397 is a wasteful number, since it uses less digits than its factorization.

32855518397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2527347582.

The product of its digits is 9072000, while the sum is 56.

The spelling of 32855518397 in words is "thirty-two billion, eight hundred fifty-five million, five hundred eighteen thousand, three hundred ninety-seven".