5681000745 has 128 divisors (see below), whose sum is σ = 11788001280. Its totient is φ = 2542337280.

The previous prime is 5681000737. The next prime is 5681000747. The reversal of 5681000745 is 5470001865.

It is not a de Polignac number, because 5681000745 - 2³ = 5681000737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5681000747) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 15230379 + ... + 15230751.

It is an arithmetic number, because the mean of its divisors is an integer number (92093760).

Almost surely, 2^5681000745 is an apocalyptic number.

5681000745 is the 47670-th heptagonal number.

It is an amenable number.

5681000745 is an abundant number, since it is smaller than the sum of its proper divisors (6107000535).

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

5681000745 is a wasteful number, since it uses less digits than its factorization.

5681000745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692 (or 686 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 5681000745 is about 75372.4136869717. The cubic root of 5681000745 is about 1784.3290607430.

The spelling of 5681000745 in words is "five billion, six hundred eighty-one million, seven hundred forty-five", and thus it is an aban number.