90043285747 has 2 divisors, whose sum is σ = 90043285748. Its totient is φ = 90043285746.

The previous prime is 90043285699. The next prime is 90043285771. The reversal of 90043285747 is 74758234009.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90043285747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90043285747.

It is not a weakly prime, because it can be changed into another prime (90043285147) 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, 45021642873 + 45021642874.

It is an arithmetic number, because the mean of its divisors is an integer number (45021642874).

Almost surely, 2^90043285747 is an apocalyptic number.

90043285747 is a deficient number, since it is larger than the sum of its proper divisors (1).

90043285747 is an equidigital number, since it uses as much as digits as its factorization.

90043285747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 90043285747 in words is "ninety billion, forty-three million, two hundred eighty-five thousand, seven hundred forty-seven".