5181345792 has 520 divisors, whose sum is σ = 18648744576. Its totient is φ = 1401421824.

The previous prime is 5181345779. The next prime is 5181345803. The reversal of 5181345792 is 2975431815.

5181345792 is a `hidden beast` number, since 518 + 1 + 3 + 45 + 7 + 92 = 666.

It is a super-2 number, since 2×5181345792² = 53692688432552214528, 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 39 ways as a sum of consecutive naturals, for example, 53415888 + ... + 53415984.

Almost surely, 2^5181345792 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 5181345792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9324372288).

5181345792 is an abundant number, since it is smaller than the sum of its proper divisors (13467398784).

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

5181345792 is an equidigital number, since it uses as much as digits as its factorization.

5181345792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 132 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 5181345792 is about 71981.5656400998. The cubic root of 5181345792 is about 1730.4040612323.

The spelling of 5181345792 in words is "five billion, one hundred eighty-one million, three hundred forty-five thousand, seven hundred ninety-two".