32012077821 has 8 divisors (see below), whose sum is σ = 43382488224. Its totient is φ = 20991526320.

The previous prime is 32012077813. The next prime is 32012077847. The reversal of 32012077821 is 12877021023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 32012077821 - 2³ = 32012077813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32012077121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87464511 + ... + 87464876.

It is an arithmetic number, because the mean of its divisors is an integer number (5422811028).

Almost surely, 2^32012077821 is an apocalyptic number.

It is an amenable number.

32012077821 is a deficient number, since it is larger than the sum of its proper divisors (11370410403).

32012077821 is a wasteful number, since it uses less digits than its factorization.

32012077821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174929451.

The product of its (nonzero) digits is 9408, while the sum is 33.

Adding to 32012077821 its reverse (12877021023), we get a palindrome (44889098844).

The spelling of 32012077821 in words is "thirty-two billion, twelve million, seventy-seven thousand, eight hundred twenty-one".