7225878135 has 32 divisors (see below), whose sum is σ = 13990275072. Its totient is φ = 3108948480.

The previous prime is 7225878131. The next prime is 7225878151. The reversal of 7225878135 is 5318785227.

It is not a de Polignac number, because 7225878135 - 2² = 7225878131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7225878131) 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 31 ways as a sum of consecutive naturals, for example, 2022271 + ... + 2025840.

It is an arithmetic number, because the mean of its divisors is an integer number (437196096).

Almost surely, 2^7225878135 is an apocalyptic number.

7225878135 is a deficient number, since it is larger than the sum of its proper divisors (6764396937).

7225878135 is a wasteful number, since it uses less digits than its factorization.

7225878135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4048143.

The product of its digits is 940800, while the sum is 48.

The square root of 7225878135 is about 85005.1653430543. The cubic root of 7225878135 is about 1933.2894350087.

The spelling of 7225878135 in words is "seven billion, two hundred twenty-five million, eight hundred seventy-eight thousand, one hundred thirty-five".