5157532857881 has 2 divisors, whose sum is σ = 5157532857882. Its totient is φ = 5157532857880.

The previous prime is 5157532857857. The next prime is 5157532857887. The reversal of 5157532857881 is 1887582357515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4902415939600 + 255116918281 = 2214140^2 + 505091^2 .

It is a cyclic number.

It is not a de Polignac number, because 5157532857881 - 2¹⁴ = 5157532841497 is a prime.

It is a super-2 number, since 2×5157532857881² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5157532857887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2578766428940 + 2578766428941.

It is an arithmetic number, because the mean of its divisors is an integer number (2578766428941).

Almost surely, 2^{5157532857881} is an apocalyptic number.

It is an amenable number.

5157532857881 is a deficient number, since it is larger than the sum of its proper divisors (1).

5157532857881 is an equidigital number, since it uses as much as digits as its factorization.

5157532857881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080000, while the sum is 65.

The spelling of 5157532857881 in words is "five trillion, one hundred fifty-seven billion, five hundred thirty-two million, eight hundred fifty-seven thousand, eight hundred eighty-one".