7649756656042 has 16 divisors (see below), whose sum is σ = 11604034122120. Its totient is φ = 3781748768512.

The previous prime is 7649756656007. The next prime is 7649756656153. The reversal of 7649756656042 is 2406566579467.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7058166471841 + 591590184201 = 2656721^2 + 769149^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3593238 + ... + 5311390.

Almost surely, 2^{7649756656042} is an apocalyptic number.

7649756656042 is a deficient number, since it is larger than the sum of its proper divisors (3954277466078).

7649756656042 is a wasteful number, since it uses less digits than its factorization.

7649756656042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743257.

The product of its (nonzero) digits is 457228800, while the sum is 67.

The spelling of 7649756656042 in words is "seven trillion, six hundred forty-nine billion, seven hundred fifty-six million, six hundred fifty-six thousand, forty-two".