32161860949 has 4 divisors (see below), whose sum is σ = 32238255340. Its totient is φ = 32085466560.

The previous prime is 32161860943. The next prime is 32161861001. The reversal of 32161860949 is 94906816123.

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 923065924 + 31238795025 = 30382^2 + 176745^2 .

It is a cyclic number.

It is not a de Polignac number, because 32161860949 - 2¹⁷ = 32161729877 is a prime.

It is a super-2 number, since 2×32161860949² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32161860943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38196564 + ... + 38197405.

It is an arithmetic number, because the mean of its divisors is an integer number (8059563835).

Almost surely, 2^32161860949 is an apocalyptic number.

It is an amenable number.

32161860949 is a deficient number, since it is larger than the sum of its proper divisors (76394391).

32161860949 is an equidigital number, since it uses as much as digits as its factorization.

32161860949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76394390.

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 32161860949 in words is "thirty-two billion, one hundred sixty-one million, eight hundred sixty thousand, nine hundred forty-nine".