31352534849 has 2 divisors, whose sum is σ = 31352534850. Its totient is φ = 31352534848.

The previous prime is 31352534797. The next prime is 31352534861. The reversal of 31352534849 is 94843525313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31337850625 + 14684224 = 177025^2 + 3832^2 .

It is an emirp because it is prime and its reverse (94843525313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31352534849 - 2²⁸ = 31084099393 is a prime.

It is not a weakly prime, because it can be changed into another prime (31352534879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15676267424 + 15676267425.

It is an arithmetic number, because the mean of its divisors is an integer number (15676267425).

Almost surely, 2^31352534849 is an apocalyptic number.

It is an amenable number.

31352534849 is a deficient number, since it is larger than the sum of its proper divisors (1).

31352534849 is an equidigital number, since it uses as much as digits as its factorization.

31352534849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1555200, while the sum is 47.

The spelling of 31352534849 in words is "thirty-one billion, three hundred fifty-two million, five hundred thirty-four thousand, eight hundred forty-nine".