247472285538121 has 8 divisors (see below), whose sum is σ = 282826231407104. Its totient is φ = 212118530224320.

The previous prime is 247472285538119. The next prime is 247472285538131. The reversal of 247472285538121 is 121835582274742.

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

It is a cyclic number.

It is not a de Polignac number, because 247472285538121 - 2¹ = 247472285538119 is a prime.

It is a super-2 number, since 2×247472285538121² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247472285538121.

It is not an unprimeable number, because it can be changed into a prime (247472285538131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44844960 + ... + 50060113.

It is an arithmetic number, because the mean of its divisors is an integer number (35353278925888).

Almost surely, 2^{247472285538121} is an apocalyptic number.

It is an amenable number.

247472285538121 is a deficient number, since it is larger than the sum of its proper divisors (35353945868983).

247472285538121 is an equidigital number, since it uses as much as digits as its factorization.

247472285538121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95277591.

The product of its digits is 60211200, while the sum is 61.

The spelling of 247472285538121 in words is "two hundred forty-seven trillion, four hundred seventy-two billion, two hundred eighty-five million, five hundred thirty-eight thousand, one hundred twenty-one".