88542548721 has 81 divisors (see below), whose sum is σ = 143718008889. Its totient is φ = 52489760400.

The previous prime is 88542548711. The next prime is 88542548729. The reversal of 88542548721 is 12784524588.

The square root of 88542548721 is 297561.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 88542548721 - 2⁷ = 88542548593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (88542548729) 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 80 ways as a sum of consecutive naturals, for example, 697185360 + ... + 697185486.

Almost surely, 2^88542548721 is an apocalyptic number.

88542548721 is the 297561-st square number.

88542548721 is the 148781-st centered octagonal number.

It is an amenable number.

88542548721 is a deficient number, since it is larger than the sum of its proper divisors (55175460168).

88542548721 is a wasteful number, since it uses less digits than its factorization.

88542548721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424 (or 212 counting only the distinct ones).

The product of its digits is 5734400, while the sum is 54.

The spelling of 88542548721 in words is "eighty-eight billion, five hundred forty-two million, five hundred forty-eight thousand, seven hundred twenty-one".