2505317750845 has 64 divisors (see below), whose sum is σ = 3749129846784. Its totient is φ = 1564841975040.

The previous prime is 2505317750779. The next prime is 2505317750869. The reversal of 2505317750845 is 5480577135052.

It is not a de Polignac number, because 2505317750845 - 2⁹ = 2505317750333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2505317750792 and 2505317750801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32552760 + ... + 32629630.

It is an arithmetic number, because the mean of its divisors is an integer number (58580153856).

Almost surely, 2^{2505317750845} is an apocalyptic number.

It is an amenable number.

2505317750845 is a deficient number, since it is larger than the sum of its proper divisors (1243812095939).

2505317750845 is a wasteful number, since it uses less digits than its factorization.

2505317750845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77842.

The product of its (nonzero) digits is 5880000, while the sum is 52.

The spelling of 2505317750845 in words is "two trillion, five hundred five billion, three hundred seventeen million, seven hundred fifty thousand, eight hundred forty-five".