7667605541 has 2 divisors, whose sum is σ = 7667605542. Its totient is φ = 7667605540.

The previous prime is 7667605493. The next prime is 7667605579. The reversal of 7667605541 is 1455067667.

7667605541 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7543617316 + 123988225 = 86854^2 + 11135^2 .

It is a cyclic number.

It is not a de Polignac number, because 7667605541 - 2²² = 7663411237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7667505541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3833802770 + 3833802771.

It is an arithmetic number, because the mean of its divisors is an integer number (3833802771).

Almost surely, 2^7667605541 is an apocalyptic number.

It is an amenable number.

7667605541 is a deficient number, since it is larger than the sum of its proper divisors (1).

7667605541 is an equidigital number, since it uses as much as digits as its factorization.

7667605541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1058400, while the sum is 47.

The square root of 7667605541 is about 87564.8647632142. The cubic root of 7667605541 is about 1971.9077211646.

The spelling of 7667605541 in words is "seven billion, six hundred sixty-seven million, six hundred five thousand, five hundred forty-one".