4473661842 has 96 divisors (see below), whose sum is σ = 10717198128. Its totient is φ = 1340172288.

The previous prime is 4473661813. The next prime is 4473661867. The reversal of 4473661842 is 2481663744.

It can be written as a sum of positive squares in 8 ways, for example, as 1278134001 + 3195527841 = 35751^2 + 56529^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1697758 + ... + 1700390.

Almost surely, 2^4473661842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4473661842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5358599064).

4473661842 is an abundant number, since it is smaller than the sum of its proper divisors (6243536286).

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

4473661842 is a wasteful number, since it uses less digits than its factorization.

4473661842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2844 (or 2841 counting only the distinct ones).

The product of its digits is 774144, while the sum is 45.

The square root of 4473661842 is about 66885.4381909844. The cubic root of 4473661842 is about 1647.7363316605.

The spelling of 4473661842 in words is "four billion, four hundred seventy-three million, six hundred sixty-one thousand, eight hundred forty-two".