2145611732817 has 8 divisors (see below), whose sum is σ = 3269503592896. Its totient is φ = 1226063847312.

The previous prime is 2145611732791. The next prime is 2145611732837. The reversal of 2145611732817 is 7182371165412.

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

It is not a de Polignac number, because 2145611732817 - 2⁶ = 2145611732753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145611732837) 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, 51085993618 + ... + 51085993659.

It is an arithmetic number, because the mean of its divisors is an integer number (408687949112).

Almost surely, 2^{2145611732817} is an apocalyptic number.

It is an amenable number.

2145611732817 is a deficient number, since it is larger than the sum of its proper divisors (1123891860079).

2145611732817 is a wasteful number, since it uses less digits than its factorization.

2145611732817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102171987287.

The product of its digits is 564480, while the sum is 48.

The spelling of 2145611732817 in words is "two trillion, one hundred forty-five billion, six hundred eleven million, seven hundred thirty-two thousand, eight hundred seventeen".