32440131077 has 4 divisors (see below), whose sum is σ = 32774565516. Its totient is φ = 32105696640.

The previous prime is 32440131049. The next prime is 32440131083. The reversal of 32440131077 is 77013104423.

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 18269847556 + 14170283521 = 135166^2 + 119039^2 .

It is a cyclic number.

It is not a de Polignac number, because 32440131077 - 2⁶ = 32440131013 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 (32440137077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167217074 + ... + 167217267.

It is an arithmetic number, because the mean of its divisors is an integer number (8193641379).

Almost surely, 2^32440131077 is an apocalyptic number.

It is an amenable number.

32440131077 is a deficient number, since it is larger than the sum of its proper divisors (334434439).

32440131077 is an equidigital number, since it uses as much as digits as its factorization.

32440131077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334434438.

The product of its (nonzero) digits is 14112, while the sum is 32.

The spelling of 32440131077 in words is "thirty-two billion, four hundred forty million, one hundred thirty-one thousand, seventy-seven".