7664124077 has 2 divisors, whose sum is σ = 7664124078. Its totient is φ = 7664124076.

The previous prime is 7664124071. The next prime is 7664124163. The reversal of 7664124077 is 7704214667.

7664124077 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6116960521 + 1547163556 = 78211^2 + 39334^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7664124077 is a prime.

It is a super-2 number, since 2×7664124077² (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 (7664124071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3832062038 + 3832062039.

It is an arithmetic number, because the mean of its divisors is an integer number (3832062039).

Almost surely, 2^7664124077 is an apocalyptic number.

It is an amenable number.

7664124077 is a deficient number, since it is larger than the sum of its proper divisors (1).

7664124077 is an equidigital number, since it uses as much as digits as its factorization.

7664124077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 395136, while the sum is 44.

The square root of 7664124077 is about 87544.9831629432. The cubic root of 7664124077 is about 1971.6092288038.

The spelling of 7664124077 in words is "seven billion, six hundred sixty-four million, one hundred twenty-four thousand, seventy-seven".