32376448721 has 4 divisors (see below), whose sum is σ = 33166118244. Its totient is φ = 31586779200.

The previous prime is 32376448697. The next prime is 32376448739. The reversal of 32376448721 is 12784467323.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12784467323 = 677 ⋅18883999.

It can be written as a sum of positive squares in 2 ways, for example, as 11613079696 + 20763369025 = 107764^2 + 144095^2 .

It is a cyclic number.

It is not a de Polignac number, because 32376448721 - 2¹⁴ = 32376432337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32376444721) 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, 394834700 + ... + 394834781.

It is an arithmetic number, because the mean of its divisors is an integer number (8291529561).

Almost surely, 2^32376448721 is an apocalyptic number.

It is an amenable number.

32376448721 is a deficient number, since it is larger than the sum of its proper divisors (789669523).

32376448721 is an equidigital number, since it uses as much as digits as its factorization.

32376448721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789669522.

The product of its digits is 1354752, while the sum is 47.

The spelling of 32376448721 in words is "thirty-two billion, three hundred seventy-six million, four hundred forty-eight thousand, seven hundred twenty-one".