7430803785561 has 96 divisors (see below), whose sum is σ = 11827447994880. Its totient is φ = 4129997414400.

The previous prime is 7430803785547. The next prime is 7430803785589. The reversal of 7430803785561 is 1655873080347.

It is not a de Polignac number, because 7430803785561 - 2¹⁴ = 7430803769177 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7430803785661) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 21383760 + ... + 21728478.

It is an arithmetic number, because the mean of its divisors is an integer number (123202583280).

Almost surely, 2^{7430803785561} is an apocalyptic number.

It is an amenable number.

7430803785561 is a deficient number, since it is larger than the sum of its proper divisors (4396644209319).

7430803785561 is a wasteful number, since it uses less digits than its factorization.

7430803785561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344867 (or 344854 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 57.

The spelling of 7430803785561 in words is "seven trillion, four hundred thirty billion, eight hundred three million, seven hundred eighty-five thousand, five hundred sixty-one".