4378787568 has 30 divisors (see below), whose sum is σ = 12254523944. Its totient is φ = 1459595808.

The previous prime is 4378787537. The next prime is 4378787579. The reversal of 4378787568 is 8657878734.

4378787568 is a `hidden beast` number, since 437 + 8 + 78 + 75 + 68 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15203980 + ... + 15204267.

Almost surely, 2^4378787568 is an apocalyptic number.

4378787568 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

4378787568 is an abundant number, since it is smaller than the sum of its proper divisors (7875736376).

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

4378787568 is a wasteful number, since it uses less digits than its factorization.

4378787568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30408261 (or 30408252 counting only the distinct ones).

The product of its digits is 63221760, while the sum is 63.

The square root of 4378787568 is about 66172.4079054102. The cubic root of 4378787568 is about 1636.0049955710.

The spelling of 4378787568 in words is "four billion, three hundred seventy-eight million, seven hundred eighty-seven thousand, five hundred sixty-eight".