31916414877157 has 2 divisors, whose sum is σ = 31916414877158. Its totient is φ = 31916414877156.

The previous prime is 31916414877107. The next prime is 31916414877169. The reversal of 31916414877157 is 75177841461913.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31843889155521 + 72525721636 = 5643039^2 + 269306^2 .

It is a cyclic number.

It is not a de Polignac number, because 31916414877157 - 2¹⁹ = 31916414352869 is a prime.

It is a super-2 number, since 2×31916414877157² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31916414877107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15958207438578 + 15958207438579.

It is an arithmetic number, because the mean of its divisors is an integer number (15958207438579).

Almost surely, 2^{31916414877157} is an apocalyptic number.

It is an amenable number.

31916414877157 is a deficient number, since it is larger than the sum of its proper divisors (1).

31916414877157 is an equidigital number, since it uses as much as digits as its factorization.

31916414877157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35562240, while the sum is 64.

The spelling of 31916414877157 in words is "thirty-one trillion, nine hundred sixteen billion, four hundred fourteen million, eight hundred seventy-seven thousand, one hundred fifty-seven".