9649956757 has 12 divisors (see below), whose sum is σ = 11486519616. Its totient is φ = 8079031800.

The previous prime is 9649956749. The next prime is 9649956769. The reversal of 9649956757 is 7576599469.

It is not a de Polignac number, because 9649956757 - 2³ = 9649956749 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9649956692 and 9649956701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9649956727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2287869 + ... + 2292082.

It is an arithmetic number, because the mean of its divisors is an integer number (957209968).

Almost surely, 2^9649956757 is an apocalyptic number.

It is an amenable number.

9649956757 is a deficient number, since it is larger than the sum of its proper divisors (1836562859).

9649956757 is a wasteful number, since it uses less digits than its factorization.

9649956757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4580008 (or 4580001 counting only the distinct ones).

The product of its digits is 128595600, while the sum is 67.

The square root of 9649956757 is about 98234.1934206211. The cubic root of 9649956757 is about 2128.9973575343.

The spelling of 9649956757 in words is "nine billion, six hundred forty-nine million, nine hundred fifty-six thousand, seven hundred fifty-seven".