31348488277 has 2 divisors, whose sum is σ = 31348488278. Its totient is φ = 31348488276.

The previous prime is 31348488263. The next prime is 31348488323. The reversal of 31348488277 is 77288484313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30375609796 + 972878481 = 174286^2 + 31191^2 .

It is a cyclic number.

It is not a de Polignac number, because 31348488277 - 2¹¹ = 31348486229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31348488377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15674244138 + 15674244139.

It is an arithmetic number, because the mean of its divisors is an integer number (15674244139).

Almost surely, 2^31348488277 is an apocalyptic number.

It is an amenable number.

31348488277 is a deficient number, since it is larger than the sum of its proper divisors (1).

31348488277 is an equidigital number, since it uses as much as digits as its factorization.

31348488277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7225344, while the sum is 55.

The spelling of 31348488277 in words is "thirty-one billion, three hundred forty-eight million, four hundred eighty-eight thousand, two hundred seventy-seven".