88644844640 has 96 divisors (see below), whose sum is σ = 238395177216. Its totient is φ = 30832975360.

The previous prime is 88644844637. The next prime is 88644844643. The reversal of 88644844640 is 4644844688.

It is an interprime number because it is at equal distance from previous prime (88644844637) and next prime (88644844643).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88644844643) 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 15 ways as a sum of consecutive naturals, for example, 1054442 + ... + 1135401.

It is an arithmetic number, because the mean of its divisors is an integer number (2483283096).

Almost surely, 2^88644844640 is an apocalyptic number.

88644844640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

88644844640 is an abundant number, since it is smaller than the sum of its proper divisors (149750332576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

88644844640 is a wasteful number, since it uses less digits than its factorization.

88644844640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189892 (or 2189884 counting only the distinct ones).

The product of its (nonzero) digits is 18874368, while the sum is 56.

The spelling of 88644844640 in words is "eighty-eight billion, six hundred forty-four million, eight hundred forty-four thousand, six hundred forty".