5171181877 has 2 divisors, whose sum is σ = 5171181878. Its totient is φ = 5171181876.

The previous prime is 5171181871. The next prime is 5171181929. The reversal of 5171181877 is 7781811715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4821080356 + 350101521 = 69434^2 + 18711^2 .

It is a cyclic number.

It is not a de Polignac number, because 5171181877 - 2²³ = 5162793269 is a prime.

It is a super-2 number, since 2×5171181877² = 53482244010026486258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5171181871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2585590938 + 2585590939.

It is an arithmetic number, because the mean of its divisors is an integer number (2585590939).

Almost surely, 2^5171181877 is an apocalyptic number.

It is an amenable number.

5171181877 is a deficient number, since it is larger than the sum of its proper divisors (1).

5171181877 is an equidigital number, since it uses as much as digits as its factorization.

5171181877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 109760, while the sum is 46.

The square root of 5171181877 is about 71910.9301636406. The cubic root of 5171181877 is about 1729.2718462146.

The spelling of 5171181877 in words is "five billion, one hundred seventy-one million, one hundred eighty-one thousand, eight hundred seventy-seven".