5640135651 has 8 divisors (see below), whose sum is σ = 8355756560. Its totient is φ = 3760090416.

The previous prime is 5640135649. The next prime is 5640135671. The reversal of 5640135651 is 1565310465.

5640135651 is a `hidden beast` number, since 5 + 640 + 1 + 3 + 5 + 6 + 5 + 1 = 666.

It is not a de Polignac number, because 5640135651 - 2¹ = 5640135649 is a prime.

It is a super-2 number, since 2×5640135651² = 63622260323362387602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5640135671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104446930 + ... + 104446983.

It is an arithmetic number, because the mean of its divisors is an integer number (1044469570).

Almost surely, 2^5640135651 is an apocalyptic number.

5640135651 is a deficient number, since it is larger than the sum of its proper divisors (2715620909).

5640135651 is a wasteful number, since it uses less digits than its factorization.

5640135651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208893922 (or 208893916 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 5640135651 is about 75100.8365532635. The cubic root of 5640135651 is about 1780.0403613076.

The spelling of 5640135651 in words is "five billion, six hundred forty million, one hundred thirty-five thousand, six hundred fifty-one".