1147800644805 has 32 divisors (see below), whose sum is σ = 1892762150400. Its totient is φ = 593638958592.

The previous prime is 1147800644801. The next prime is 1147800644819. The reversal of 1147800644805 is 5084460087411.

It is not a de Polignac number, because 1147800644805 - 2² = 1147800644801 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147800644801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7391440 + ... + 7545129.

It is an arithmetic number, because the mean of its divisors is an integer number (59148817200).

Almost surely, 2^{1147800644805} is an apocalyptic number.

1147800644805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1147800644805 is a deficient number, since it is larger than the sum of its proper divisors (744961505595).

1147800644805 is a wasteful number, since it uses less digits than its factorization.

1147800644805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14936733.

The product of its (nonzero) digits is 860160, while the sum is 48.

The spelling of 1147800644805 in words is "one trillion, one hundred forty-seven billion, eight hundred million, six hundred forty-four thousand, eight hundred five".