46781854481 has 18 divisors (see below), whose sum is σ = 50933324358. Its totient is φ = 42934460160.

The previous prime is 46781854459. The next prime is 46781854487. The reversal of 46781854481 is 18445818764.

It can be written as a sum of positive squares in 3 ways, for example, as 7300164481 + 39481690000 = 85441^2 + 198700^2 .

It is not a de Polignac number, because 46781854481 - 2⁶ = 46781854417 is a prime.

It is a super-2 number, since 2×46781854481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46781854487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 23542970 + ... + 23544956.

It is an arithmetic number, because the mean of its divisors is an integer number (2829629131).

Almost surely, 2^46781854481 is an apocalyptic number.

46781854481 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

46781854481 is a deficient number, since it is larger than the sum of its proper divisors (4151469877).

46781854481 is an frugal number, since it uses more digits than its factorization.

46781854481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4049 (or 2045 counting only the distinct ones).

The product of its digits is 6881280, while the sum is 56.

The spelling of 46781854481 in words is "forty-six billion, seven hundred eighty-one million, eight hundred fifty-four thousand, four hundred eighty-one".