5681020672 has 36 divisors (see below), whose sum is σ = 11936694280. Its totient is φ = 2691007488.

The previous prime is 5681020669. The next prime is 5681020727. The reversal of 5681020672 is 2760201865.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579123 + ... + 588850.

Almost surely, 2^5681020672 is an apocalyptic number.

It is an amenable number.

5681020672 is an abundant number, since it is smaller than the sum of its proper divisors (6255673608).

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

5681020672 is a wasteful number, since it uses less digits than its factorization.

5681020672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168008 (or 1167994 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 5681020672 is about 75372.5458771296. The cubic root of 5681020672 is about 1784.3311470118.

The spelling of 5681020672 in words is "five billion, six hundred eighty-one million, twenty thousand, six hundred seventy-two".