105572687881 has 2 divisors, whose sum is σ = 105572687882. Its totient is φ = 105572687880.

The previous prime is 105572687867. The next prime is 105572687903. The reversal of 105572687881 is 188786275501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69859247481 + 35713440400 = 264309^2 + 188980^2 .

It is a cyclic number.

It is not a de Polignac number, because 105572687881 - 2⁹ = 105572687369 is a prime.

It is a super-2 number, since 2×105572687881² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105572687851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52786343940 + 52786343941.

It is an arithmetic number, because the mean of its divisors is an integer number (52786343941).

Almost surely, 2^105572687881 is an apocalyptic number.

It is an amenable number.

105572687881 is a deficient number, since it is larger than the sum of its proper divisors (1).

105572687881 is an equidigital number, since it uses as much as digits as its factorization.

105572687881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7526400, while the sum is 58.

The spelling of 105572687881 in words is "one hundred five billion, five hundred seventy-two million, six hundred eighty-seven thousand, eight hundred eighty-one".