2645742562171 has 8 divisors (see below), whose sum is σ = 2651157806400. Its totient is φ = 2640328171200.

The previous prime is 2645742562163. The next prime is 2645742562201. The reversal of 2645742562171 is 1712652475462.

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 2645742562171 - 2³ = 2645742562163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2645742572171) 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, 6190846 + ... + 6604396.

It is an arithmetic number, because the mean of its divisors is an integer number (331394725800).

Almost surely, 2^{2645742562171} is an apocalyptic number.

2645742562171 is a deficient number, since it is larger than the sum of its proper divisors (5415244229).

2645742562171 is a wasteful number, since it uses less digits than its factorization.

2645742562171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426629.

The product of its digits is 5644800, while the sum is 52.

The spelling of 2645742562171 in words is "two trillion, six hundred forty-five billion, seven hundred forty-two million, five hundred sixty-two thousand, one hundred seventy-one".