46531721149 has 6 divisors (see below), whose sum is σ = 46987882206. Its totient is φ = 46079946360.

The previous prime is 46531721147. The next prime is 46531721237. The reversal of 46531721149 is 94112713564.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 46518725124 + 12996025 = 215682^2 + 3605^2 .

It is not a de Polignac number, because 46531721149 - 2¹ = 46531721147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46531721141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2182422 + ... + 2203639.

It is an arithmetic number, because the mean of its divisors is an integer number (7831313701).

Almost surely, 2^46531721149 is an apocalyptic number.

It is an amenable number.

46531721149 is a deficient number, since it is larger than the sum of its proper divisors (456161057).

46531721149 is an equidigital number, since it uses as much as digits as its factorization.

46531721149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4386267 (or 4386164 counting only the distinct ones).

The product of its digits is 181440, while the sum is 43.

The spelling of 46531721149 in words is "forty-six billion, five hundred thirty-one million, seven hundred twenty-one thousand, one hundred forty-nine".