8955449978 has 8 divisors (see below), whose sum is σ = 13489381440. Its totient is φ = 4458989500.

The previous prime is 8955449929. The next prime is 8955450017. The reversal of 8955449978 is 8799445598.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9367148 + ... + 9368103.

It is an arithmetic number, because the mean of its divisors is an integer number (1686172680).

Almost surely, 2^8955449978 is an apocalyptic number.

8955449978 is a deficient number, since it is larger than the sum of its proper divisors (4533931462).

8955449978 is a wasteful number, since it uses less digits than its factorization.

8955449978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18735492.

The product of its digits is 130636800, while the sum is 68.

The square root of 8955449978 is about 94633.2392872610. The cubic root of 8955449978 is about 2076.6460043903.

The spelling of 8955449978 in words is "eight billion, nine hundred fifty-five million, four hundred forty-nine thousand, nine hundred seventy-eight".