1147807916545 has 8 divisors (see below), whose sum is σ = 1377423988200. Its totient is φ = 918210007680.

The previous prime is 1147807916539. The next prime is 1147807916557. The reversal of 1147807916545 is 5456197087411.

It can be written as a sum of positive squares in 4 ways, for example, as 6758812944 + 1141049103601 = 82212^2 + 1068199^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1147807916545 - 2⁷ = 1147807916417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1147807916545.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4401276 + ... + 4654765.

It is an arithmetic number, because the mean of its divisors is an integer number (172177998525).

Almost surely, 2^{1147807916545} is an apocalyptic number.

It is an amenable number.

1147807916545 is a deficient number, since it is larger than the sum of its proper divisors (229616071655).

1147807916545 is an equidigital number, since it uses as much as digits as its factorization.

1147807916545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9081395.

The product of its (nonzero) digits is 8467200, while the sum is 58.

The spelling of 1147807916545 in words is "one trillion, one hundred forty-seven billion, eight hundred seven million, nine hundred sixteen thousand, five hundred forty-five".