2045312762849 has 16 divisors (see below), whose sum is σ = 2148960817920. Its totient is φ = 1942934558400.

The previous prime is 2045312762821. The next prime is 2045312762851. The reversal of 2045312762849 is 9482672135402.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2045312762849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2045312762849.

It is not an unprimeable number, because it can be changed into a prime (2045312762819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1601924 + ... + 2580074.

It is an arithmetic number, because the mean of its divisors is an integer number (134310051120).

It is a 1-persistent number, because it is pandigital, but 2⋅2045312762849 = 4090625525698 is not.

Almost surely, 2^{2045312762849} is an apocalyptic number.

It is an amenable number.

2045312762849 is a deficient number, since it is larger than the sum of its proper divisors (103648055071).

2045312762849 is a wasteful number, since it uses less digits than its factorization.

2045312762849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978800.

The product of its (nonzero) digits is 5806080, while the sum is 53.

The spelling of 2045312762849 in words is "two trillion, forty-five billion, three hundred twelve million, seven hundred sixty-two thousand, eight hundred forty-nine".