47663077108181 has 4 divisors (see below), whose sum is σ = 47677930049100. Its totient is φ = 47648224167264.

The previous prime is 47663077108177. The next prime is 47663077108187. The reversal of 47663077108181 is 18180177036674.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29826518585956 + 17836558522225 = 5461366^2 + 4223335^2 .

It is a cyclic number.

It is not a de Polignac number, because 47663077108181 - 2² = 47663077108177 is a prime.

It is a super-2 number, since 2×47663077108181² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47663077108181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47663077108187) 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, 7426465646 + ... + 7426472063.

It is an arithmetic number, because the mean of its divisors is an integer number (11919482512275).

Almost surely, 2^{47663077108181} is an apocalyptic number.

It is an amenable number.

47663077108181 is a deficient number, since it is larger than the sum of its proper divisors (14852940919).

47663077108181 is a wasteful number, since it uses less digits than its factorization.

47663077108181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14852940918.

The product of its (nonzero) digits is 9483264, while the sum is 59.

The spelling of 47663077108181 in words is "forty-seven trillion, six hundred sixty-three billion, seventy-seven million, one hundred eight thousand, one hundred eighty-one".