5681451140 has 12 divisors (see below), whose sum is σ = 11931047436. Its totient is φ = 2272580448.

The previous prime is 5681451109. The next prime is 5681451143. The reversal of 5681451140 is 411541865.

It can be written as a sum of positive squares in 2 ways, for example, as 621405184 + 5060045956 = 24928^2 + 71134^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5681451140.

It is not an unprimeable number, because it can be changed into a prime (5681451143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142036259 + ... + 142036298.

It is an arithmetic number, because the mean of its divisors is an integer number (994253953).

Almost surely, 2^5681451140 is an apocalyptic number.

It is an amenable number.

5681451140 is an abundant number, since it is smaller than the sum of its proper divisors (6249596296).

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

5681451140 is a wasteful number, since it uses less digits than its factorization.

5681451140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284072566 (or 284072564 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 5681451140 is about 75375.4014251334. The cubic root of 5681451140 is about 1784.3762139171.

The spelling of 5681451140 in words is "five billion, six hundred eighty-one million, four hundred fifty-one thousand, one hundred forty".