31094149709 has 4 divisors (see below), whose sum is σ = 35536171104. Its totient is φ = 26652128316.

The previous prime is 31094149679. The next prime is 31094149753. The reversal of 31094149709 is 90794149013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31094149709 is a prime.

It is a super-2 number, since 2×31094149709² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31094149309) 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 in 3 ways as a sum of consecutive naturals, for example, 2221010687 + ... + 2221010700.

It is an arithmetic number, because the mean of its divisors is an integer number (8884042776).

Almost surely, 2^31094149709 is an apocalyptic number.

It is an amenable number.

31094149709 is a deficient number, since it is larger than the sum of its proper divisors (4442021395).

31094149709 is an equidigital number, since it uses as much as digits as its factorization.

31094149709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4442021394.

The product of its (nonzero) digits is 244944, while the sum is 47.

The spelling of 31094149709 in words is "thirty-one billion, ninety-four million, one hundred forty-nine thousand, seven hundred nine".