32809278961 has 4 divisors (see below), whose sum is σ = 32811483712. Its totient is φ = 32807074212.

The previous prime is 32809278893. The next prime is 32809278973. The reversal of 32809278961 is 16987290823.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 32809278961 - 2¹⁹ = 32808754673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32809273961) 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, 1079901 + ... + 1109866.

It is an arithmetic number, because the mean of its divisors is an integer number (8202870928).

Almost surely, 2^32809278961 is an apocalyptic number.

It is an amenable number.

32809278961 is a deficient number, since it is larger than the sum of its proper divisors (2204751).

32809278961 is a wasteful number, since it uses less digits than its factorization.

32809278961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2204750.

The product of its (nonzero) digits is 2612736, while the sum is 55.

The spelling of 32809278961 in words is "thirty-two billion, eight hundred nine million, two hundred seventy-eight thousand, nine hundred sixty-one".