3667618973 has 2 divisors, whose sum is σ = 3667618974. Its totient is φ = 3667618972.

The previous prime is 3667618943. The next prime is 3667618979. The reversal of 3667618973 is 3798167663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2370034489 + 1297584484 = 48683^2 + 36022^2 .

It is a cyclic number.

It is not a de Polignac number, because 3667618973 - 2¹⁶ = 3667553437 is a prime.

It is a super-2 number, since 2×3667618973² = 26902857862219149458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3667618979) 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, 1833809486 + 1833809487.

It is an arithmetic number, because the mean of its divisors is an integer number (1833809487).

Almost surely, 2^3667618973 is an apocalyptic number.

It is an amenable number.

3667618973 is a deficient number, since it is larger than the sum of its proper divisors (1).

3667618973 is an equidigital number, since it uses as much as digits as its factorization.

3667618973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6858432, while the sum is 56.

The square root of 3667618973 is about 60560.8699821923. The cubic root of 3667618973 is about 1542.1551560812.

The spelling of 3667618973 in words is "three billion, six hundred sixty-seven million, six hundred eighteen thousand, nine hundred seventy-three".