9413947978 has 8 divisors (see below), whose sum is σ = 14734875168. Its totient is φ = 4502322924.

The previous prime is 9413947969. The next prime is 9413947979. The reversal of 9413947978 is 8797493149.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (9413947979) 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, 102325476 + ... + 102325567.

It is an arithmetic number, because the mean of its divisors is an integer number (1841859396).

Almost surely, 2^9413947978 is an apocalyptic number.

9413947978 is a deficient number, since it is larger than the sum of its proper divisors (5320927190).

9413947978 is a wasteful number, since it uses less digits than its factorization.

9413947978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204651068.

The product of its digits is 13716864, while the sum is 61.

The square root of 9413947978 is about 97025.5016889890. The cubic root of 9413947978 is about 2111.4976286200.

The spelling of 9413947978 in words is "nine billion, four hundred thirteen million, nine hundred forty-seven thousand, nine hundred seventy-eight".