1371696768 has 160 divisors (see below), whose sum is σ = 4396590660. Its totient is φ = 422019072.

The previous prime is 1371696749. The next prime is 1371696817. The reversal of 1371696768 is 8676961731.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1353651264 + 18045504 = 36792^2 + 4248^2 .

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

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, 129696 + ... + 139872.

Almost surely, 2^1371696768 is an apocalyptic number.

1371696768 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 1371696768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2198295330).

1371696768 is an abundant number, since it is smaller than the sum of its proper divisors (3024893892).

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

1371696768 is a wasteful number, since it uses less digits than its factorization.

1371696768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10216 (or 10195 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 1371696768 is about 37036.4248814596. The cubic root of 1371696768 is about 1111.0988679658.

The spelling of 1371696768 in words is "one billion, three hundred seventy-one million, six hundred ninety-six thousand, seven hundred sixty-eight".