7081543404 has 144 divisors (see below), whose sum is σ = 20032579840. Its totient is φ = 2094543360.

The previous prime is 7081543363. The next prime is 7081543433. The reversal of 7081543404 is 4043451807.

7081543404 is a `hidden beast` number, since 70 + 8 + 1 + 543 + 40 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 2276202 + ... + 2279310.

Almost surely, 2^7081543404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7081543404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10016289920).

7081543404 is an abundant number, since it is smaller than the sum of its proper divisors (12951036436).

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

7081543404 is a wasteful number, since it uses less digits than its factorization.

7081543404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3320 (or 3315 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 7081543404 is about 84151.9067163662. The cubic root of 7081543404 is about 1920.3304737140.

The spelling of 7081543404 in words is "seven billion, eighty-one million, five hundred forty-three thousand, four hundred four".