1047187817045 has 8 divisors (see below), whose sum is σ = 1256741402424. Its totient is φ = 837672905664.

The previous prime is 1047187817041. The next prime is 1047187817057. The reversal of 1047187817045 is 5407187817401.

It can be written as a sum of positive squares in 4 ways, for example, as 48975017809 + 998212799236 = 221303^2 + 999106^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1047187817045 - 2² = 1047187817041 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 (1047187817041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9608894 + ... + 9717263.

It is an arithmetic number, because the mean of its divisors is an integer number (157092675303).

Almost surely, 2^{1047187817045} is an apocalyptic number.

It is an amenable number.

1047187817045 is a deficient number, since it is larger than the sum of its proper divisors (209553585379).

1047187817045 is a wasteful number, since it uses less digits than its factorization.

1047187817045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19336999.

The product of its (nonzero) digits is 1756160, while the sum is 53.

The spelling of 1047187817045 in words is "one trillion, forty-seven billion, one hundred eighty-seven million, eight hundred seventeen thousand, forty-five".