7340406673661 has 2 divisors, whose sum is σ = 7340406673662. Its totient is φ = 7340406673660.

The previous prime is 7340406673591. The next prime is 7340406673741. The reversal of 7340406673661 is 1663766040437.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5913743648761 + 1426663024900 = 2431819^2 + 1194430^2 .

It is a cyclic number.

It is not a de Polignac number, because 7340406673661 - 2³⁸ = 7065528766717 is a prime.

It is a super-2 number, since 2×7340406673661² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7340406670661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3670203336830 + 3670203336831.

It is an arithmetic number, because the mean of its divisors is an integer number (3670203336831).

Almost surely, 2^{7340406673661} is an apocalyptic number.

It is an amenable number.

7340406673661 is a deficient number, since it is larger than the sum of its proper divisors (1).

7340406673661 is an equidigital number, since it uses as much as digits as its factorization.

7340406673661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9144576, while the sum is 53.

The spelling of 7340406673661 in words is "seven trillion, three hundred forty billion, four hundred six million, six hundred seventy-three thousand, six hundred sixty-one".