7739868949 has 2 divisors, whose sum is σ = 7739868950. Its totient is φ = 7739868948.

The previous prime is 7739868907. The next prime is 7739868991. The reversal of 7739868949 is 9498689377.

It is a balanced prime because it is at equal distance from previous prime (7739868907) and next prime (7739868991).

It can be written as a sum of positive squares in only one way, i.e., 7739600625 + 268324 = 87975^2 + 518^2 .

It is a cyclic number.

It is not a de Polignac number, because 7739868949 - 2¹⁹ = 7739344661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7739868049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3869934474 + 3869934475.

It is an arithmetic number, because the mean of its divisors is an integer number (3869934475).

Almost surely, 2^7739868949 is an apocalyptic number.

It is an amenable number.

7739868949 is a deficient number, since it is larger than the sum of its proper divisors (1).

7739868949 is an equidigital number, since it uses as much as digits as its factorization.

7739868949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 164602368, while the sum is 70.

The square root of 7739868949 is about 87976.5249882035. The cubic root of 7739868949 is about 1978.0831148027.

The spelling of 7739868949 in words is "seven billion, seven hundred thirty-nine million, eight hundred sixty-eight thousand, nine hundred forty-nine".