92878807849 has 2 divisors, whose sum is σ = 92878807850. Its totient is φ = 92878807848.

The previous prime is 92878807843. The next prime is 92878807873. The reversal of 92878807849 is 94870887829.

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., 85303716624 + 7575091225 = 292068^2 + 87035^2 .

It is a cyclic number.

It is not a de Polignac number, because 92878807849 - 2⁹ = 92878807337 is a prime.

It is not a weakly prime, because it can be changed into another prime (92878807843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46439403924 + 46439403925.

It is an arithmetic number, because the mean of its divisors is an integer number (46439403925).

Almost surely, 2^92878807849 is an apocalyptic number.

It is an amenable number.

92878807849 is a deficient number, since it is larger than the sum of its proper divisors (1).

92878807849 is an equidigital number, since it uses as much as digits as its factorization.

92878807849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 130056192, while the sum is 70.

The spelling of 92878807849 in words is "ninety-two billion, eight hundred seventy-eight million, eight hundred seven thousand, eight hundred forty-nine".