9649894142 has 16 divisors (see below), whose sum is σ = 16775672832. Its totient is φ = 4077419640.

The previous prime is 9649894141. The next prime is 9649894171. The reversal of 9649894142 is 2414989469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9649894141) 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, 4853078 + ... + 4855065.

It is an arithmetic number, because the mean of its divisors is an integer number (1048479552).

Almost surely, 2^9649894142 is an apocalyptic number.

9649894142 is a deficient number, since it is larger than the sum of its proper divisors (7125778690).

9649894142 is a wasteful number, since it uses less digits than its factorization.

9649894142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9708223.

The product of its digits is 4478976, while the sum is 56.

The square root of 9649894142 is about 98233.8747174314. The cubic root of 9649894142 is about 2128.9927527656.

The spelling of 9649894142 in words is "nine billion, six hundred forty-nine million, eight hundred ninety-four thousand, one hundred forty-two".