5312927978 has 8 divisors (see below), whose sum is σ = 8003596068. Its totient is φ = 2645062624.

The previous prime is 5312927927. The next prime is 5312927989. The reversal of 5312927978 is 8797292135.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5163428449 + 149499529 = 71857^2 + 12227^2 .

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

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, 5700101 + ... + 5701032.

Almost surely, 2^5312927978 is an apocalyptic number.

5312927978 is a deficient number, since it is larger than the sum of its proper divisors (2690668090).

5312927978 is a wasteful number, since it uses less digits than its factorization.

5312927978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11401368.

The product of its digits is 1905120, while the sum is 53.

The square root of 5312927978 is about 72889.8345312980. The cubic root of 5312927978 is about 1744.9298667226.

The spelling of 5312927978 in words is "five billion, three hundred twelve million, nine hundred twenty-seven thousand, nine hundred seventy-eight".