6623950978 has 8 divisors (see below), whose sum is σ = 10256440320. Its totient is φ = 3205137540.

The previous prime is 6623950933. The next prime is 6623950979. The reversal of 6623950978 is 8790593266.

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 (6623950979) 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, 53418898 + ... + 53419021.

It is an arithmetic number, because the mean of its divisors is an integer number (1282055040).

Almost surely, 2^6623950978 is an apocalyptic number.

6623950978 is a deficient number, since it is larger than the sum of its proper divisors (3632489342).

6623950978 is a wasteful number, since it uses less digits than its factorization.

6623950978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106837952.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The square root of 6623950978 is about 81387.6586344637. The cubic root of 6623950978 is about 1878.0437416541.

The spelling of 6623950978 in words is "six billion, six hundred twenty-three million, nine hundred fifty thousand, nine hundred seventy-eight".