7421271207285 has 64 divisors (see below), whose sum is σ = 13113193395456. Its totient is φ = 3560839833600.

The previous prime is 7421271207281. The next prime is 7421271207293. The reversal of 7421271207285 is 5827021721247.

It is not a de Polignac number, because 7421271207285 - 2² = 7421271207281 is a prime.

It is a super-2 number, since 2×7421271207285² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7421271207281) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2905545 + ... + 4825425.

It is an arithmetic number, because the mean of its divisors is an integer number (204893646804).

Almost surely, 2^{7421271207285} is an apocalyptic number.

It is an amenable number.

7421271207285 is a deficient number, since it is larger than the sum of its proper divisors (5691922188171).

7421271207285 is a wasteful number, since it uses less digits than its factorization.

7421271207285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920406.

The product of its (nonzero) digits is 878080, while the sum is 48.

The spelling of 7421271207285 in words is "seven trillion, four hundred twenty-one billion, two hundred seventy-one million, two hundred seven thousand, two hundred eighty-five".