5178669390 has 80 divisors (see below), whose sum is σ = 13962060288. Its totient is φ = 1377290304.

The previous prime is 5178669389. The next prime is 5178669401. The reversal of 5178669390 is 939668715.

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 39 ways as a sum of consecutive naturals, for example, 301884 + ... + 318576.

Almost surely, 2^5178669390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5178669390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6981030144).

5178669390 is an abundant number, since it is smaller than the sum of its proper divisors (8783390898).

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

5178669390 is a wasteful number, since it uses less digits than its factorization.

5178669390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17095 (or 17086 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 54.

The square root of 5178669390 is about 71962.9723538432. The cubic root of 5178669390 is about 1730.1060656456.

The spelling of 5178669390 in words is "five billion, one hundred seventy-eight million, six hundred sixty-nine thousand, three hundred ninety".