45261871665617 has 8 divisors (see below), whose sum is σ = 45702597245760. Its totient is φ = 44821170892080.

The previous prime is 45261871665613. The next prime is 45261871665623. The reversal of 45261871665617 is 71656617816254.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45261871665617 - 2² = 45261871665613 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45261871665613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2524142 + ... + 9843527.

It is an arithmetic number, because the mean of its divisors is an integer number (5712824655720).

Almost surely, 2^{45261871665617} is an apocalyptic number.

It is an amenable number.

45261871665617 is a deficient number, since it is larger than the sum of its proper divisors (440725580143).

45261871665617 is a wasteful number, since it uses less digits than its factorization.

45261871665617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12403303.

The product of its digits is 101606400, while the sum is 65.

The spelling of 45261871665617 in words is "forty-five trillion, two hundred sixty-one billion, eight hundred seventy-one million, six hundred sixty-five thousand, six hundred seventeen".