90750960109993 has 2 divisors, whose sum is σ = 90750960109994. Its totient is φ = 90750960109992.

The previous prime is 90750960109987. The next prime is 90750960110023. The reversal of 90750960109993 is 39990106905709.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86951372851984 + 3799587258009 = 9324772^2 + 1949253^2 .

It is an emirp because it is prime and its reverse (39990106905709) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90750960109993 - 2²⁵ = 90750926555561 is a prime.

It is not a weakly prime, because it can be changed into another prime (90750960109493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45375480054996 + 45375480054997.

It is an arithmetic number, because the mean of its divisors is an integer number (45375480054997).

Almost surely, 2^{90750960109993} is an apocalyptic number.

It is an amenable number.

90750960109993 is a deficient number, since it is larger than the sum of its proper divisors (1).

90750960109993 is an equidigital number, since it uses as much as digits as its factorization.

90750960109993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37200870, while the sum is 67.

The spelling of 90750960109993 in words is "ninety trillion, seven hundred fifty billion, nine hundred sixty million, one hundred nine thousand, nine hundred ninety-three".