46487699181 has 144 divisors (see below), whose sum is σ = 86266311040. Its totient is φ = 23607936000.

The previous prime is 46487699123. The next prime is 46487699183. The reversal of 46487699181 is 18199678464.

46487699181 is a `hidden beast` number, since 4 + 6 + 487 + 69 + 91 + 8 + 1 = 666.

It is not a de Polignac number, because 46487699181 - 2⁶ = 46487699117 is a prime.

It is a super-2 number, since 2×46487699181² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46487699183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 77350281 + ... + 77350881.

Almost surely, 2^46487699181 is an apocalyptic number.

It is an amenable number.

46487699181 is a deficient number, since it is larger than the sum of its proper divisors (39778611859).

46487699181 is a wasteful number, since it uses less digits than its factorization.

46487699181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848 (or 834 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 63.

The spelling of 46487699181 in words is "forty-six billion, four hundred eighty-seven million, six hundred ninety-nine thousand, one hundred eighty-one".