5200000978 has 16 divisors (see below), whose sum is σ = 8365446720. Its totient is φ = 2416682736.

The previous prime is 5200000973. The next prime is 5200000999. The reversal of 5200000978 is 8790000025.

It is not an unprimeable number, because it can be changed into a prime (5200000973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1288950 + ... + 1292977.

It is an arithmetic number, because the mean of its divisors is an integer number (522840420).

Almost surely, 2^5200000978 is an apocalyptic number.

5200000978 is a deficient number, since it is larger than the sum of its proper divisors (3165445742).

5200000978 is a wasteful number, since it uses less digits than its factorization.

5200000978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2582001.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 5200000978 is about 72111.0322904894. The cubic root of 5200000978 is about 1732.4783192949.

The spelling of 5200000978 in words is "five billion, two hundred million, nine hundred seventy-eight", and thus it is an aban number.