108690584381 has 2 divisors, whose sum is σ = 108690584382. Its totient is φ = 108690584380.

The previous prime is 108690584377. The next prime is 108690584419. The reversal of 108690584381 is 183485096801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70623062500 + 38067521881 = 265750^2 + 195109^2 .

It is a cyclic number.

It is not a de Polignac number, because 108690584381 - 2² = 108690584377 is a prime.

It is a super-2 number, since 2×108690584381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108690584081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54345292190 + 54345292191.

It is an arithmetic number, because the mean of its divisors is an integer number (54345292191).

Almost surely, 2^108690584381 is an apocalyptic number.

It is an amenable number.

108690584381 is a deficient number, since it is larger than the sum of its proper divisors (1).

108690584381 is an equidigital number, since it uses as much as digits as its factorization.

108690584381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1658880, while the sum is 53.

The spelling of 108690584381 in words is "one hundred eight billion, six hundred ninety million, five hundred eighty-four thousand, three hundred eighty-one".