90887937841 has 2 divisors, whose sum is σ = 90887937842. Its totient is φ = 90887937840.

The previous prime is 90887937827. The next prime is 90887937869. The reversal of 90887937841 is 14873978809.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53379481600 + 37508456241 = 231040^2 + 193671^2 .

It is a cyclic number.

It is not a de Polignac number, because 90887937841 - 2¹⁹ = 90887413553 is a prime.

It is not a weakly prime, because it can be changed into another prime (90887937541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45443968920 + 45443968921.

It is an arithmetic number, because the mean of its divisors is an integer number (45443968921).

Almost surely, 2^90887937841 is an apocalyptic number.

It is an amenable number.

90887937841 is a deficient number, since it is larger than the sum of its proper divisors (1).

90887937841 is an equidigital number, since it uses as much as digits as its factorization.

90887937841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24385536, while the sum is 64.

The spelling of 90887937841 in words is "ninety billion, eight hundred eighty-seven million, nine hundred thirty-seven thousand, eight hundred forty-one".