7431275538655 has 16 divisors (see below), whose sum is σ = 9491014046304. Its totient is φ = 5566322073600.

The previous prime is 7431275538623. The next prime is 7431275538677. The reversal of 7431275538655 is 5568355721347.

It is not a de Polignac number, because 7431275538655 - 2⁵ = 7431275538623 is a prime.

It is a super-2 number, since 2×7431275538655² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7431275538593 and 7431275538602.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 226477821 + ... + 226510630.

It is an arithmetic number, because the mean of its divisors is an integer number (593188377894).

Almost surely, 2^{7431275538655} is an apocalyptic number.

7431275538655 is a deficient number, since it is larger than the sum of its proper divisors (2059738507649).

7431275538655 is a wasteful number, since it uses less digits than its factorization.

7431275538655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452988666.

The product of its digits is 105840000, while the sum is 61.

The spelling of 7431275538655 in words is "seven trillion, four hundred thirty-one billion, two hundred seventy-five million, five hundred thirty-eight thousand, six hundred fifty-five".