48778777 has 2 divisors, whose sum is σ = 48778778. Its totient is φ = 48778776.

The previous prime is 48778771. The next prime is 48778789. The reversal of 48778777 is 77787784.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43414921 + 5363856 = 6589^2 + 2316^2 .

It is a cyclic number.

It is not a de Polignac number, because 48778777 - 2⁷ = 48778649 is a prime.

It is not a weakly prime, because it can be changed into another prime (48778771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24389388 + 24389389.

It is an arithmetic number, because the mean of its divisors is an integer number (24389389).

Almost surely, 2^48778777 is an apocalyptic number.

It is an amenable number.

48778777 is a deficient number, since it is larger than the sum of its proper divisors (1).

48778777 is an equidigital number, since it uses as much as digits as its factorization.

48778777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4302592, while the sum is 55.

The square root of 48778777 is about 6984.1804816313. The cubic root of 48778777 is about 365.3790445279.

The spelling of 48778777 in words is "forty-eight million, seven hundred seventy-eight thousand, seven hundred seventy-seven".