31422738089 has 2 divisors, whose sum is σ = 31422738090. Its totient is φ = 31422738088.

The previous prime is 31422738047. The next prime is 31422738101. The reversal of 31422738089 is 98083722413.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27940794025 + 3481944064 = 167155^2 + 59008^2 .

It is an emirp because it is prime and its reverse (98083722413) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31422738089 - 2¹⁶ = 31422672553 is a prime.

It is not a weakly prime, because it can be changed into another prime (31422738689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15711369044 + 15711369045.

It is an arithmetic number, because the mean of its divisors is an integer number (15711369045).

Almost surely, 2^31422738089 is an apocalyptic number.

It is an amenable number.

31422738089 is a deficient number, since it is larger than the sum of its proper divisors (1).

31422738089 is an equidigital number, since it uses as much as digits as its factorization.

31422738089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 31422738089 in words is "thirty-one billion, four hundred twenty-two million, seven hundred thirty-eight thousand, eighty-nine".