1745074505887 has 4 divisors (see below), whose sum is σ = 1745077243336. Its totient is φ = 1745071768440.

The previous prime is 1745074505861. The next prime is 1745074505947. The reversal of 1745074505887 is 7885054705471.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1745074505887 - 2²³ = 1745066117279 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 (1745074505827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147013 + ... + 1873969.

It is an arithmetic number, because the mean of its divisors is an integer number (436269310834).

Almost surely, 2^{1745074505887} is an apocalyptic number.

1745074505887 is a deficient number, since it is larger than the sum of its proper divisors (2737449).

1745074505887 is a wasteful number, since it uses less digits than its factorization.

1745074505887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737448.

The product of its (nonzero) digits is 43904000, while the sum is 61.

The spelling of 1745074505887 in words is "one trillion, seven hundred forty-five billion, seventy-four million, five hundred five thousand, eight hundred eighty-seven".