5640126956 has 12 divisors (see below), whose sum is σ = 9960775440. Its totient is φ = 2794191120.

The previous prime is 5640126937. The next prime is 5640126959. The reversal of 5640126956 is 6596210465.

It is a super-2 number, since 2×5640126956² = 63622064159595651872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5640126959) 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, 6467600 + ... + 6468471.

It is an arithmetic number, because the mean of its divisors is an integer number (830064620).

Almost surely, 2^5640126956 is an apocalyptic number.

It is an amenable number.

5640126956 is a deficient number, since it is larger than the sum of its proper divisors (4320648484).

5640126956 is a wasteful number, since it uses less digits than its factorization.

5640126956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12936184 (or 12936182 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 44.

The square root of 5640126956 is about 75100.7786644053. The cubic root of 5640126956 is about 1780.0394465862.

The spelling of 5640126956 in words is "five billion, six hundred forty million, one hundred twenty-six thousand, nine hundred fifty-six".