7229551881 has 8 divisors (see below), whose sum is σ = 9950351104. Its totient is φ = 4664226960.

The previous prime is 7229551871. The next prime is 7229551913. The reversal of 7229551881 is 1881559227.

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

It is not a de Polignac number, because 7229551881 - 2⁹ = 7229551369 is a prime.

It is a super-2 number, since 2×7229551881² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7229551881.

It is not an unprimeable number, because it can be changed into a prime (7229551831) 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 7 ways as a sum of consecutive naturals, for example, 38868466 + ... + 38868651.

It is an arithmetic number, because the mean of its divisors is an integer number (1243793888).

Almost surely, 2^7229551881 is an apocalyptic number.

It is an amenable number.

7229551881 is a deficient number, since it is larger than the sum of its proper divisors (2720799223).

7229551881 is a wasteful number, since it uses less digits than its factorization.

7229551881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77737151.

The product of its digits is 403200, while the sum is 48.

The square root of 7229551881 is about 85026.7715546110. The cubic root of 7229551881 is about 1933.6170173859.

The spelling of 7229551881 in words is "seven billion, two hundred twenty-nine million, five hundred fifty-one thousand, eight hundred eighty-one".