46143188381 has 4 divisors (see below), whose sum is σ = 46618891452. Its totient is φ = 45667485312.

The previous prime is 46143188369. The next prime is 46143188387. The reversal of 46143188381 is 18388134164.

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

It can be written as a sum of positive squares in 2 ways, for example, as 37545262756 + 8597925625 = 193766^2 + 92725^2 .

It is a cyclic number.

It is not a de Polignac number, because 46143188381 - 2¹⁸ = 46142926237 is a prime.

It is a super-2 number, since 2×46143188381² (a number of 22 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 (46143188387) 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, 237851390 + ... + 237851583.

It is an arithmetic number, because the mean of its divisors is an integer number (11654722863).

Almost surely, 2^46143188381 is an apocalyptic number.

It is an amenable number.

46143188381 is a deficient number, since it is larger than the sum of its proper divisors (475703071).

46143188381 is an equidigital number, since it uses as much as digits as its factorization.

46143188381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475703070.

The product of its digits is 442368, while the sum is 47.

The spelling of 46143188381 in words is "forty-six billion, one hundred forty-three million, one hundred eighty-eight thousand, three hundred eighty-one".