7875470745787 has 4 divisors (see below), whose sum is σ = 7875510529320. Its totient is φ = 7875430962256.

The previous prime is 7875470745683. The next prime is 7875470745809.

7875470745787 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7875470745787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7875470745287) 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, 19593337 + ... + 19991242.

It is an arithmetic number, because the mean of its divisors is an integer number (1968877632330).

Almost surely, 2^{7875470745787} is an apocalyptic number.

7875470745787 is a deficient number, since it is larger than the sum of its proper divisors (39783533).

7875470745787 is a wasteful number, since it uses less digits than its factorization.

7875470745787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39783532.

The product of its (nonzero) digits is 3011814400, while the sum is 76.

The spelling of 7875470745787 in words is "seven trillion, eight hundred seventy-five billion, four hundred seventy million, seven hundred forty-five thousand, seven hundred eighty-seven".