8131847347201 has 4 divisors (see below), whose sum is σ = 8269675268400. Its totient is φ = 7994019426004.

The previous prime is 8131847347189. The next prime is 8131847347207. The reversal of 8131847347201 is 1027437481318.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8131847347201 - 2¹⁵ = 8131847314433 is a prime.

It is a super-2 number, since 2×8131847347201² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8131847347207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68913960511 + ... + 68913960628.

It is an arithmetic number, because the mean of its divisors is an integer number (2067418817100).

Almost surely, 2^{8131847347201} is an apocalyptic number.

It is an amenable number.

8131847347201 is a deficient number, since it is larger than the sum of its proper divisors (137827921199).

8131847347201 is a wasteful number, since it uses less digits than its factorization.

8131847347201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137827921198.

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 8131847347201 in words is "eight trillion, one hundred thirty-one billion, eight hundred forty-seven million, three hundred forty-seven thousand, two hundred one".