6248577978 has 40 divisors (see below), whose sum is σ = 14005955700. Its totient is φ = 2082188160.

The previous prime is 6248577977. The next prime is 6248577989. The reversal of 6248577978 is 8797758426.

6248577978 is a `hidden beast` number, since 62 + 485 + 7 + 7 + 97 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6248428209 + 149769 = 79047^2 + 387^2 .

It is not an unprimeable number, because it can be changed into a prime (6248577977) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 965698 + ... + 972146.

Almost surely, 2^6248577978 is an apocalyptic number.

6248577978 is an abundant number, since it is smaller than the sum of its proper divisors (7757377722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6248577978 is a wasteful number, since it uses less digits than its factorization.

6248577978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12444 (or 12435 counting only the distinct ones).

The product of its digits is 47416320, while the sum is 63.

The square root of 6248577978 is about 79047.9473357784. The cubic root of 6248577978 is about 1841.8760380881.

The spelling of 6248577978 in words is "six billion, two hundred forty-eight million, five hundred seventy-seven thousand, nine hundred seventy-eight".