2045142922517 has 8 divisors (see below), whose sum is σ = 2100455714136. Its totient is φ = 1989832165632.

The previous prime is 2045142922469. The next prime is 2045142922519. The reversal of 2045142922517 is 7152292415402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1065341879716 + 979801042801 = 1032154^2 + 989849^2 .

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 2045142922517 - 2²⁶ = 2045075813653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045142922519) 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, 1651073 + ... + 2610809.

It is an arithmetic number, because the mean of its divisors is an integer number (262556964267).

Almost surely, 2^{2045142922517} is an apocalyptic number.

It is an amenable number.

2045142922517 is a deficient number, since it is larger than the sum of its proper divisors (55312791619).

2045142922517 is an equidigital number, since it uses as much as digits as its factorization.

2045142922517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017367.

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 2045142922517 in words is "two trillion, forty-five billion, one hundred forty-two million, nine hundred twenty-two thousand, five hundred seventeen".