88744409999 has 16 divisors (see below), whose sum is σ = 106769510400. Its totient is φ = 72056840544.

The previous prime is 88744409989. The next prime is 88744410023. The reversal of 88744409999 is 99990444788.

It is a Cunningham number, because it is equal to 297900²-1.

It is a cyclic number.

It is not a de Polignac number, because 88744409999 - 2³² = 84449442703 is a prime.

It is a super-2 number, since 2×88744409999² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88744409909) 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 15 ways as a sum of consecutive naturals, for example, 2064029 + ... + 2106585.

It is an arithmetic number, because the mean of its divisors is an integer number (6673094400).

Almost surely, 2^88744409999 is an apocalyptic number.

88744409999 is a deficient number, since it is larger than the sum of its proper divisors (18025100401).

88744409999 is a wasteful number, since it uses less digits than its factorization.

88744409999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58262.

The product of its (nonzero) digits is 188116992, while the sum is 71.

The spelling of 88744409999 in words is "eighty-eight billion, seven hundred forty-four million, four hundred nine thousand, nine hundred ninety-nine".