47554681658191 has 2 divisors, whose sum is σ = 47554681658192. Its totient is φ = 47554681658190.

The previous prime is 47554681658189. The next prime is 47554681658207. The reversal of 47554681658191 is 19185618645574.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47554681658191 - 2¹ = 47554681658189 is a prime.

It is a super-2 number, since 2×47554681658191² (a number of 28 digits) contains 22 as substring.

Together with 47554681658189, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 47554681658191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47554681658161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23777340829095 + 23777340829096.

It is an arithmetic number, because the mean of its divisors is an integer number (23777340829096).

Almost surely, 2^{47554681658191} is an apocalyptic number.

47554681658191 is a deficient number, since it is larger than the sum of its proper divisors (1).

47554681658191 is an equidigital number, since it uses as much as digits as its factorization.

47554681658191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304000, while the sum is 70.

The spelling of 47554681658191 in words is "forty-seven trillion, five hundred fifty-four billion, six hundred eighty-one million, six hundred fifty-eight thousand, one hundred ninety-one".