88028422421 has 2 divisors, whose sum is σ = 88028422422. Its totient is φ = 88028422420.

The previous prime is 88028422301. The next prime is 88028422451. The reversal of 88028422421 is 12422482088.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87290702500 + 737719921 = 295450^2 + 27161^2 .

It is a cyclic number.

It is not a de Polignac number, because 88028422421 - 2³⁰ = 86954680597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88028422451) 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 as a sum of consecutive naturals, namely, 44014211210 + 44014211211.

It is an arithmetic number, because the mean of its divisors is an integer number (44014211211).

Almost surely, 2^88028422421 is an apocalyptic number.

It is an amenable number.

88028422421 is a deficient number, since it is larger than the sum of its proper divisors (1).

88028422421 is an equidigital number, since it uses as much as digits as its factorization.

88028422421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 131072, while the sum is 41.

The spelling of 88028422421 in words is "eighty-eight billion, twenty-eight million, four hundred twenty-two thousand, four hundred twenty-one".