5223646978 has 32 divisors (see below), whose sum is σ = 8952819840. Its totient is φ = 2262648960.

The previous prime is 5223646969. The next prime is 5223646999. The reversal of 5223646978 is 8796463225.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116926 + ... + 155302.

It is an arithmetic number, because the mean of its divisors is an integer number (279775620).

Almost surely, 2^5223646978 is an apocalyptic number.

5223646978 is a deficient number, since it is larger than the sum of its proper divisors (3729172862).

5223646978 is a wasteful number, since it uses less digits than its factorization.

5223646978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38682.

The product of its digits is 4354560, while the sum is 52.

The square root of 5223646978 is about 72274.8018191679. The cubic root of 5223646978 is about 1735.1003856906.

The spelling of 5223646978 in words is "five billion, two hundred twenty-three million, six hundred forty-six thousand, nine hundred seventy-eight".