3258749387161 has 4 divisors (see below), whose sum is σ = 3312171508324. Its totient is φ = 3205327266000.

The previous prime is 3258749387107. The next prime is 3258749387177. The reversal of 3258749387161 is 1617839478523.

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 487456708761 + 2771292678400 = 698181^2 + 1664720^2 .

It is a cyclic number.

It is not a de Polignac number, because 3258749387161 - 2¹¹ = 3258749385113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3258749387093 and 3258749387102.

It is not an unprimeable number, because it can be changed into a prime (3258749387261) 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, 26711060490 + ... + 26711060611.

It is an arithmetic number, because the mean of its divisors is an integer number (828042877081).

Almost surely, 2^{3258749387161} is an apocalyptic number.

It is an amenable number.

3258749387161 is a deficient number, since it is larger than the sum of its proper divisors (53422121163).

3258749387161 is an equidigital number, since it uses as much as digits as its factorization.

3258749387161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53422121162.

The product of its digits is 60963840, while the sum is 64.

The spelling of 3258749387161 in words is "three trillion, two hundred fifty-eight billion, seven hundred forty-nine million, three hundred eighty-seven thousand, one hundred sixty-one".