32612906821 has 4 divisors (see below), whose sum is σ = 35577716544. Its totient is φ = 29648097100.

The previous prime is 32612906819. The next prime is 32612906881. The reversal of 32612906821 is 12860921623.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12860921623 = 11 ⋅1169174693.

It is a cyclic number.

It is not a de Polignac number, because 32612906821 - 2¹ = 32612906819 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 (32612906881) 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, 1482404845 + ... + 1482404866.

It is an arithmetic number, because the mean of its divisors is an integer number (8894429136).

Almost surely, 2^32612906821 is an apocalyptic number.

It is an amenable number.

32612906821 is a deficient number, since it is larger than the sum of its proper divisors (2964809723).

32612906821 is a wasteful number, since it uses less digits than its factorization.

32612906821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2964809722.

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 32612906821 in words is "thirty-two billion, six hundred twelve million, nine hundred six thousand, eight hundred twenty-one".