4778070749 has 2 divisors, whose sum is σ = 4778070750. Its totient is φ = 4778070748.

The previous prime is 4778070743. The next prime is 4778070793. The reversal of 4778070749 is 9470708774.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3429859225 + 1348211524 = 58565^2 + 36718^2 .

It is a cyclic number.

It is not a de Polignac number, because 4778070749 - 2²⁸ = 4509635293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4778070749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4778070743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2389035374 + 2389035375.

It is an arithmetic number, because the mean of its divisors is an integer number (2389035375).

Almost surely, 2^4778070749 is an apocalyptic number.

It is an amenable number.

4778070749 is a deficient number, since it is larger than the sum of its proper divisors (1).

4778070749 is an equidigital number, since it uses as much as digits as its factorization.

4778070749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2765952, while the sum is 53.

The square root of 4778070749 is about 69123.5903943075. The cubic root of 4778070749 is about 1684.2925410204.

The spelling of 4778070749 in words is "four billion, seven hundred seventy-eight million, seventy thousand, seven hundred forty-nine".