46991346381 has 72 divisors (see below), whose sum is σ = 80860291200. Its totient is φ = 26210568384.

The previous prime is 46991346371. The next prime is 46991346397. The reversal of 46991346381 is 18364319964.

46991346381 is a `hidden beast` number, since 4 + 6 + 99 + 13 + 463 + 81 = 666.

It is not a de Polignac number, because 46991346381 - 2¹⁵ = 46991313613 is a prime.

It is a super-2 number, since 2×46991346381² (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 (46991346371) 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 71 ways as a sum of consecutive naturals, for example, 4646176 + ... + 4656278.

It is an arithmetic number, because the mean of its divisors is an integer number (1123059600).

Almost surely, 2^46991346381 is an apocalyptic number.

It is an amenable number.

46991346381 is a deficient number, since it is larger than the sum of its proper divisors (33868944819).

46991346381 is a wasteful number, since it uses less digits than its factorization.

46991346381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10375 (or 10365 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The spelling of 46991346381 in words is "forty-six billion, nine hundred ninety-one million, three hundred forty-six thousand, three hundred eighty-one".