9740465978 has 4 divisors (see below), whose sum is σ = 14610698970. Its totient is φ = 4870232988.

The previous prime is 9740465971. The next prime is 9740466017. The reversal of 9740465978 is 8795640479.

9740465978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8020456249 + 1720009729 = 89557^2 + 41473^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9740465971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2435116493 + ... + 2435116496.

Almost surely, 2^9740465978 is an apocalyptic number.

9740465978 is a deficient number, since it is larger than the sum of its proper divisors (4870232992).

9740465978 is a wasteful number, since it uses less digits than its factorization.

9740465978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4870232991.

The product of its (nonzero) digits is 15240960, while the sum is 59.

The square root of 9740465978 is about 98693.7990858595. The cubic root of 9740465978 is about 2135.6327783388.

The spelling of 9740465978 in words is "nine billion, seven hundred forty million, four hundred sixty-five thousand, nine hundred seventy-eight".