32630644261 has 4 divisors (see below), whose sum is σ = 32635895724. Its totient is φ = 32625392800.

The previous prime is 32630644259. The next prime is 32630644273. The reversal of 32630644261 is 16244603623.

It is a happy number.

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 14234876100 + 18395768161 = 119310^2 + 135631^2 .

It is a cyclic number.

It is not a de Polignac number, because 32630644261 - 2¹ = 32630644259 is a prime.

It is a super-2 number, since 2×32630644261² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32630644261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32630647261) 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, 2616400 + ... + 2628841.

It is an arithmetic number, because the mean of its divisors is an integer number (8158973931).

Almost surely, 2^32630644261 is an apocalyptic number.

It is an amenable number.

32630644261 is a deficient number, since it is larger than the sum of its proper divisors (5251463).

32630644261 is an equidigital number, since it uses as much as digits as its factorization.

32630644261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5251462.

The product of its (nonzero) digits is 124416, while the sum is 37.

The spelling of 32630644261 in words is "thirty-two billion, six hundred thirty million, six hundred forty-four thousand, two hundred sixty-one".