7840413541684 has 6 divisors (see below), whose sum is σ = 13720723697954. Its totient is φ = 3920206770840.

The previous prime is 7840413541661. The next prime is 7840413541687. The reversal of 7840413541684 is 4861453140487.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6863498749584 + 976914792100 = 2619828^2 + 988390^2 .

It is a super-2 number, since 2×7840413541684² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7840413541687) 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, 980051692707 + ... + 980051692714.

Almost surely, 2^{7840413541684} is an apocalyptic number.

It is an amenable number.

7840413541684 is a deficient number, since it is larger than the sum of its proper divisors (5880310156270).

7840413541684 is a wasteful number, since it uses less digits than its factorization.

7840413541684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960103385425 (or 1960103385423 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 55.

The spelling of 7840413541684 in words is "seven trillion, eight hundred forty billion, four hundred thirteen million, five hundred forty-one thousand, six hundred eighty-four".