247382308485 has 24 divisors (see below), whose sum is σ = 461780310264. Its totient is φ = 121788213120.

The previous prime is 247382308457. The next prime is 247382308501. The reversal of 247382308485 is 584803283742.

It can be written as a sum of positive squares in 4 ways, for example, as 566106849 + 246816201636 = 23793^2 + 496806^2 .

It is not a de Polignac number, because 247382308485 - 2¹⁹ = 247381784197 is a prime.

It is a super-2 number, since 2×247382308485² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 211437286 + ... + 211438455.

It is an arithmetic number, because the mean of its divisors is an integer number (19240846261).

Almost surely, 2^247382308485 is an apocalyptic number.

It is an amenable number.

247382308485 is a deficient number, since it is larger than the sum of its proper divisors (214398001779).

247382308485 is a wasteful number, since it uses less digits than its factorization.

247382308485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422875765 (or 422875762 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 54.

The spelling of 247382308485 in words is "two hundred forty-seven billion, three hundred eighty-two million, three hundred eight thousand, four hundred eighty-five".