1534668768 has 120 divisors (see below), whose sum is σ = 4581301032. Its totient is φ = 503864064.

The previous prime is 1534668743. The next prime is 1534668781. The reversal of 1534668768 is 8678664351.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 169246 + ... + 178082.

Almost surely, 2^1534668768 is an apocalyptic number.

1534668768 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 1534668768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2290650516).

1534668768 is an abundant number, since it is smaller than the sum of its proper divisors (3046632264).

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

1534668768 is an equidigital number, since it uses as much as digits as its factorization.

1534668768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8926 (or 8909 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 1534668768 is about 39174.8486659489. The cubic root of 1534668768 is about 1153.4662319893.

The spelling of 1534668768 in words is "one billion, five hundred thirty-four million, six hundred sixty-eight thousand, seven hundred sixty-eight".