841397495117 has 8 divisors (see below), whose sum is σ = 914969613816. Its totient is φ = 770500726272.

The previous prime is 841397495093. The next prime is 841397495131. The reversal of 841397495117 is 711594793148.

It can be written as a sum of positive squares in 4 ways, for example, as 425696222116 + 415701273001 = 652454^2 + 644749^2 .

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 841397495117 - 2¹² = 841397491021 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 (841397495137) 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, 668836808 + ... + 668838065.

It is an arithmetic number, because the mean of its divisors is an integer number (114371201727).

Almost surely, 2^841397495117 is an apocalyptic number.

It is an amenable number.

841397495117 is a deficient number, since it is larger than the sum of its proper divisors (73572118699).

841397495117 is a wasteful number, since it uses less digits than its factorization.

841397495117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337674927.

The product of its digits is 7620480, while the sum is 59.

The spelling of 841397495117 in words is "eight hundred forty-one billion, three hundred ninety-seven million, four hundred ninety-five thousand, one hundred seventeen".