1361172638847 has 8 divisors (see below), whose sum is σ = 2074167830656. Its totient is φ = 777812936472.

The previous prime is 1361172638827. The next prime is 1361172638953. The reversal of 1361172638847 is 7488362711631.

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

It is not a de Polignac number, because 1361172638847 - 2²⁰ = 1361171590271 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 (1361172638827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32408872333 + ... + 32408872374.

It is an arithmetic number, because the mean of its divisors is an integer number (259270978832).

Almost surely, 2^{1361172638847} is an apocalyptic number.

1361172638847 is a deficient number, since it is larger than the sum of its proper divisors (712995191809).

1361172638847 is an equidigital number, since it uses as much as digits as its factorization.

1361172638847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64817744717.

The product of its digits is 8128512, while the sum is 57.

The spelling of 1361172638847 in words is "one trillion, three hundred sixty-one billion, one hundred seventy-two million, six hundred thirty-eight thousand, eight hundred forty-seven".