46389617181 has 12 divisors (see below), whose sum is σ = 70533921120. Its totient is φ = 29298705480.

The previous prime is 46389617177. The next prime is 46389617189. The reversal of 46389617181 is 18171698364.

46389617181 is a `hidden beast` number, since 4 + 6 + 3 + 8 + 9 + 617 + 18 + 1 = 666.

It is not a de Polignac number, because 46389617181 - 2² = 46389617177 is a prime.

It is a super-2 number, since 2×46389617181² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46389617189) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135641985 + ... + 135642326.

It is an arithmetic number, because the mean of its divisors is an integer number (5877826760).

Almost surely, 2^46389617181 is an apocalyptic number.

It is an amenable number.

46389617181 is a deficient number, since it is larger than the sum of its proper divisors (24144303939).

46389617181 is a wasteful number, since it uses less digits than its factorization.

46389617181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271284336 (or 271284333 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The spelling of 46389617181 in words is "forty-six billion, three hundred eighty-nine million, six hundred seventeen thousand, one hundred eighty-one".