1045717378747 has 4 divisors (see below), whose sum is σ = 1091183351760. Its totient is φ = 1000251405736.

The previous prime is 1045717378639. The next prime is 1045717378751. The reversal of 1045717378747 is 7478737175401.

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

It is a cyclic number.

It is not a de Polignac number, because 1045717378747 - 2⁷ = 1045717378619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045717178747) 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, 22732986472 + ... + 22732986517.

It is an arithmetic number, because the mean of its divisors is an integer number (272795837940).

Almost surely, 2^{1045717378747} is an apocalyptic number.

1045717378747 is a deficient number, since it is larger than the sum of its proper divisors (45465973013).

1045717378747 is an equidigital number, since it uses as much as digits as its factorization.

1045717378747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45465973012.

The product of its (nonzero) digits is 32269440, while the sum is 61.

The spelling of 1045717378747 in words is "one trillion, forty-five billion, seven hundred seventeen million, three hundred seventy-eight thousand, seven hundred forty-seven".