45447578111808 has 168 divisors, whose sum is σ = 132880822899240. Its totient is φ = 14847048437760.

The previous prime is 45447578111701. The next prime is 45447578111813. The reversal of 45447578111808 is 80811187574454.

It is a happy number.

45447578111808 is a `hidden beast` number, since 4 + 5 + 4 + 47 + 578 + 1 + 1 + 18 + 0 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1867617425664 + 43579960686144 = 1366608^2 + 6601512^2 .

It is a super-2 number, since 2×45447578111808² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7397878 + ... + 12067466.

Almost surely, 2^{45447578111808} is an apocalyptic number.

45447578111808 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45447578111808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66440411449620).

45447578111808 is an abundant number, since it is smaller than the sum of its proper divisors (87433244787432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45447578111808 is a wasteful number, since it uses less digits than its factorization.

45447578111808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4669945 (or 4669932 counting only the distinct ones).

The product of its (nonzero) digits is 40140800, while the sum is 63.

The spelling of 45447578111808 in words is "forty-five trillion, four hundred forty-seven billion, five hundred seventy-eight million, one hundred eleven thousand, eight hundred eight".