1478771568 has 120 divisors (see below), whose sum is σ = 4332320928. Its totient is φ = 469979136.

The previous prime is 1478771551. The next prime is 1478771573. The reversal of 1478771568 is 8651778741.

1478771568 is a `hidden beast` number, since 1 + 4 + 7 + 8 + 7 + 71 + 568 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1513096 + ... + 1514072.

Almost surely, 2^1478771568 is an apocalyptic number.

1478771568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1478771568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2166160464).

1478771568 is an abundant number, since it is smaller than the sum of its proper divisors (2853549360).

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

1478771568 is a wasteful number, since it uses less digits than its factorization.

1478771568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471 (or 1462 counting only the distinct ones).

The product of its digits is 2634240, while the sum is 54.

The square root of 1478771568 is about 38454.7990243090. The cubic root of 1478771568 is about 1139.2884571759.

The spelling of 1478771568 in words is "one billion, four hundred seventy-eight million, seven hundred seventy-one thousand, five hundred sixty-eight".