32378938013 has 4 divisors (see below), whose sum is σ = 32379395388. Its totient is φ = 32378480640.

The previous prime is 32378937991. The next prime is 32378938057. The reversal of 32378938013 is 31083987323.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31083987323 = 1759 ⋅17671397.

It can be written as a sum of positive squares in 2 ways, for example, as 15405277924 + 16973660089 = 124118^2 + 130283^2 .

It is a cyclic number.

It is not a de Polignac number, because 32378938013 - 2²⁰ = 32377889437 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 (32378938073) 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, 97358 + ... + 272463.

It is an arithmetic number, because the mean of its divisors is an integer number (8094848847).

Almost surely, 2^32378938013 is an apocalyptic number.

It is an amenable number.

32378938013 is a deficient number, since it is larger than the sum of its proper divisors (457375).

32378938013 is an equidigital number, since it uses as much as digits as its factorization.

32378938013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457374.

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 32378938013 in words is "thirty-two billion, three hundred seventy-eight million, nine hundred thirty-eight thousand, thirteen".