90200768783 has 2 divisors, whose sum is σ = 90200768784. Its totient is φ = 90200768782.

The previous prime is 90200768743. The next prime is 90200768839. The reversal of 90200768783 is 38786700209.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90200768783 - 2⁸ = 90200768527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90200768743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45100384391 + 45100384392.

It is an arithmetic number, because the mean of its divisors is an integer number (45100384392).

Almost surely, 2^90200768783 is an apocalyptic number.

90200768783 is a deficient number, since it is larger than the sum of its proper divisors (1).

90200768783 is an equidigital number, since it uses as much as digits as its factorization.

90200768783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 90200768783 in words is "ninety billion, two hundred million, seven hundred sixty-eight thousand, seven hundred eighty-three".