5651712644 has 12 divisors (see below), whose sum is σ = 9915413004. Its totient is φ = 2818737504.

The previous prime is 5651712643. The next prime is 5651712653. The reversal of 5651712644 is 4462171565.

It can be written as a sum of positive squares in 2 ways, for example, as 3864114244 + 1787598400 = 62162^2 + 42280^2 .

It is not an unprimeable number, because it can be changed into a prime (5651712643) 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, 1777919 + ... + 1781094.

It is an arithmetic number, because the mean of its divisors is an integer number (826284417).

Almost surely, 2^5651712644 is an apocalyptic number.

It is an amenable number.

5651712644 is a deficient number, since it is larger than the sum of its proper divisors (4263700360).

5651712644 is a wasteful number, since it uses less digits than its factorization.

5651712644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3559414 (or 3559412 counting only the distinct ones).

The product of its digits is 201600, while the sum is 41.

The square root of 5651712644 is about 75177.8733671018. The cubic root of 5651712644 is about 1781.2574378940.

The spelling of 5651712644 in words is "five billion, six hundred fifty-one million, seven hundred twelve thousand, six hundred forty-four".