7225147881 has 12 divisors (see below), whose sum is σ = 11927228352. Its totient is φ = 4128655896.

The previous prime is 7225147843. The next prime is 7225147889. The reversal of 7225147881 is 1887415227.

It is not a de Polignac number, because 7225147881 - 2⁷ = 7225147753 is a prime.

It is a super-4 number, since 4×7225147881⁴ (a number of 41 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (7225147889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57342381 + ... + 57342506.

It is an arithmetic number, because the mean of its divisors is an integer number (993935696).

Almost surely, 2^7225147881 is an apocalyptic number.

It is an amenable number.

7225147881 is a deficient number, since it is larger than the sum of its proper divisors (4702080471).

7225147881 is a wasteful number, since it uses less digits than its factorization.

7225147881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114684900 (or 114684897 counting only the distinct ones).

The product of its digits is 250880, while the sum is 45.

The square root of 7225147881 is about 85000.8698837841. The cubic root of 7225147881 is about 1933.2243061354.

The spelling of 7225147881 in words is "seven billion, two hundred twenty-five million, one hundred forty-seven thousand, eight hundred eighty-one".