46658513781 has 32 divisors (see below), whose sum is σ = 77445763200. Its totient is φ = 27513613440.

The previous prime is 46658513729. The next prime is 46658513789. The reversal of 46658513781 is 18731585664.

It is a happy number.

46658513781 is a `hidden beast` number, since 4 + 6 + 6 + 58 + 513 + 78 + 1 = 666.

It is not a de Polignac number, because 46658513781 - 2¹⁸ = 46658251637 is a prime.

It is a super-2 number, since 2×46658513781² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46658513789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2111976 + ... + 2133953.

It is an arithmetic number, because the mean of its divisors is an integer number (2420180100).

Almost surely, 2^46658513781 is an apocalyptic number.

It is an amenable number.

46658513781 is a deficient number, since it is larger than the sum of its proper divisors (30787249419).

46658513781 is a wasteful number, since it uses less digits than its factorization.

46658513781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4245986 (or 4245980 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The spelling of 46658513781 in words is "forty-six billion, six hundred fifty-eight million, five hundred thirteen thousand, seven hundred eighty-one".