7804709403481 has 3 divisors (see below), whose sum is σ = 7804712197173. Its totient is φ = 7804706609790.

The previous prime is 7804709403457. The next prime is 7804709403497. The reversal of 7804709403481 is 1843049074087.

It is a happy number.

The square root of 7804709403481 is 2793691.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 7804709403481 - 2¹³ = 7804709395289 is a prime.

It is a super-2 number, since 2×7804709403481² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7804709403781) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1396846 + ... + 4190536.

It is an arithmetic number, because the mean of its divisors is an integer number (2601570732391).

Almost surely, 2^{7804709403481} is an apocalyptic number.

7804709403481 is the 2793691-st square number.

7804709403481 is the 1396846-th centered octagonal number.

It is an amenable number.

7804709403481 is a deficient number, since it is larger than the sum of its proper divisors (2793692).

7804709403481 is an frugal number, since it uses more digits than its factorization.

7804709403481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5587382 (or 2793691 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 55.

The spelling of 7804709403481 in words is "seven trillion, eight hundred four billion, seven hundred nine million, four hundred three thousand, four hundred eighty-one".