7985169078481 has 8 divisors (see below), whose sum is σ = 9131025820544. Its totient is φ = 6840591912000.

The previous prime is 7985169078391. The next prime is 7985169078487. The reversal of 7985169078481 is 1848709615897.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7985169078481 - 2⁷ = 7985169078353 is a prime.

It is a super-2 number, since 2×7985169078481² (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 (7985169078487) 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 in 7 ways as a sum of consecutive naturals, for example, 319880520 + ... + 319905481.

It is an arithmetic number, because the mean of its divisors is an integer number (1141378227568).

Almost surely, 2^{7985169078481} is an apocalyptic number.

It is an amenable number.

7985169078481 is a deficient number, since it is larger than the sum of its proper divisors (1145856742063).

7985169078481 is a wasteful number, since it uses less digits than its factorization.

7985169078481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639787791.

The product of its (nonzero) digits is 243855360, while the sum is 73.

The spelling of 7985169078481 in words is "seven trillion, nine hundred eighty-five billion, one hundred sixty-nine million, seventy-eight thousand, four hundred eighty-one".