7661443147743 has 48 divisors (see below), whose sum is σ = 12969982172160. Its totient is φ = 3977928864000.

The previous prime is 7661443147733. The next prime is 7661443147759. The reversal of 7661443147743 is 3477413441667.

It is not a de Polignac number, because 7661443147743 - 2⁶ = 7661443147679 is a prime.

It is a super-2 number, since 2×7661443147743² (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 (7661443147733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1940503 + ... + 4369031.

It is an arithmetic number, because the mean of its divisors is an integer number (270207961920).

Almost surely, 2^{7661443147743} is an apocalyptic number.

7661443147743 is a deficient number, since it is larger than the sum of its proper divisors (5308539024417).

7661443147743 is a wasteful number, since it uses less digits than its factorization.

7661443147743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2430508 (or 2430501 counting only the distinct ones).

The product of its digits is 28449792, while the sum is 57.

The spelling of 7661443147743 in words is "seven trillion, six hundred sixty-one billion, four hundred forty-three million, one hundred forty-seven thousand, seven hundred forty-three".