5309181000 has 192 divisors, whose sum is σ = 18021294720. Its totient is φ = 1409769600.

The previous prime is 5309180977. The next prime is 5309181019. The reversal of 5309181000 is 1819035.

It is a super-2 number, since 2×5309181000² = 56374805781522000000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2365879 + ... + 2368121.

It is an arithmetic number, because the mean of its divisors is an integer number (93860910).

Almost surely, 2^5309181000 is an apocalyptic number.

5309181000 is a gapful number since it is divisible by the number (50) 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 5309181000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9010647360).

5309181000 is an abundant number, since it is smaller than the sum of its proper divisors (12712113720).

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

5309181000 is a wasteful number, since it uses less digits than its factorization.

5309181000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533 (or 2516 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 5309181000 is about 72864.1269761739. The cubic root of 5309181000 is about 1744.5195624302.

The spelling of 5309181000 in words is "five billion, three hundred nine million, one hundred eighty-one thousand".