32990846521 has 4 divisors (see below), whose sum is σ = 32991222132. Its totient is φ = 32990470912.

The previous prime is 32990846509. The next prime is 32990846531. The reversal of 32990846521 is 12564809923.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12564809923 = 569 ⋅22082267.

It can be written as a sum of positive squares in 2 ways, for example, as 12958407225 + 20032439296 = 113835^2 + 141536^2 .

It is a cyclic number.

It is not a de Polignac number, because 32990846521 - 2¹⁷ = 32990715449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32990846501) 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, 22281 + ... + 257833.

It is an arithmetic number, because the mean of its divisors is an integer number (8247805533).

Almost surely, 2^32990846521 is an apocalyptic number.

It is an amenable number.

32990846521 is a deficient number, since it is larger than the sum of its proper divisors (375611).

32990846521 is a wasteful number, since it uses less digits than its factorization.

32990846521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375610.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 32990846521 in words is "thirty-two billion, nine hundred ninety million, eight hundred forty-six thousand, five hundred twenty-one".