5378915668 has 48 divisors (see below), whose sum is σ = 11422736640. Its totient is φ = 2163534336.

The previous prime is 5378915639. The next prime is 5378915669. The reversal of 5378915668 is 8665198735.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5378915669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155146 + ... + 186622.

It is an arithmetic number, because the mean of its divisors is an integer number (237973680).

Almost surely, 2^5378915668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5378915668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5711368320).

5378915668 is an abundant number, since it is smaller than the sum of its proper divisors (6043820972).

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

5378915668 is a wasteful number, since it uses less digits than its factorization.

5378915668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31864 (or 31862 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 58.

The square root of 5378915668 is about 73341.0912654018. The cubic root of 5378915668 is about 1752.1242957381.

The spelling of 5378915668 in words is "five billion, three hundred seventy-eight million, nine hundred fifteen thousand, six hundred sixty-eight".