8768637949 has 2 divisors, whose sum is σ = 8768637950. Its totient is φ = 8768637948.

The previous prime is 8768637937. The next prime is 8768637971. The reversal of 8768637949 is 9497368678.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5311785924 + 3456852025 = 72882^2 + 58795^2 .

It is a cyclic number.

It is not a de Polignac number, because 8768637949 - 2¹⁹ = 8768113661 is a prime.

It is a super-2 number, since 2×8768637949² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8768637989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4384318974 + 4384318975.

It is an arithmetic number, because the mean of its divisors is an integer number (4384318975).

Almost surely, 2^8768637949 is an apocalyptic number.

It is an amenable number.

8768637949 is a deficient number, since it is larger than the sum of its proper divisors (1).

8768637949 is an equidigital number, since it uses as much as digits as its factorization.

8768637949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 109734912, while the sum is 67.

The square root of 8768637949 is about 93641.0057026301. The cubic root of 8768637949 is about 2062.1047038401.

The spelling of 8768637949 in words is "eight billion, seven hundred sixty-eight million, six hundred thirty-seven thousand, nine hundred forty-nine".