46543665492991 has 4 divisors (see below), whose sum is σ = 46544428227352. Its totient is φ = 46542902758632.

The previous prime is 46543665492913. The next prime is 46543665493019. The reversal of 46543665492991 is 19929456634564.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46543665492991 is a prime.

It is a super-2 number, since 2×46543665492991² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46543665432991) 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, 381275640 + ... + 381397693.

It is an arithmetic number, because the mean of its divisors is an integer number (11636107056838).

Almost surely, 2^{46543665492991} is an apocalyptic number.

46543665492991 is a deficient number, since it is larger than the sum of its proper divisors (762734361).

46543665492991 is an equidigital number, since it uses as much as digits as its factorization.

46543665492991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762734360.

The product of its digits is 1511654400, while the sum is 73.

The spelling of 46543665492991 in words is "forty-six trillion, five hundred forty-three billion, six hundred sixty-five million, four hundred ninety-two thousand, nine hundred ninety-one".