107908631393 has 2 divisors, whose sum is σ = 107908631394. Its totient is φ = 107908631392.

The previous prime is 107908631263. The next prime is 107908631423. The reversal of 107908631393 is 393136809701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85610078464 + 22298552929 = 292592^2 + 149327^2 .

It is a cyclic number.

It is not a de Polignac number, because 107908631393 - 2⁸ = 107908631137 is a prime.

It is a super-2 number, since 2×107908631393² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (107908631993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53954315696 + 53954315697.

It is an arithmetic number, because the mean of its divisors is an integer number (53954315697).

Almost surely, 2^107908631393 is an apocalyptic number.

It is an amenable number.

107908631393 is a deficient number, since it is larger than the sum of its proper divisors (1).

107908631393 is an equidigital number, since it uses as much as digits as its factorization.

107908631393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 734832, while the sum is 50.

The spelling of 107908631393 in words is "one hundred seven billion, nine hundred eight million, six hundred thirty-one thousand, three hundred ninety-three".