1088123399440 has 80 divisors (see below), whose sum is σ = 3154144728960. Its totient is φ = 339155343360.

The previous prime is 1088123399411. The next prime is 1088123399449. The reversal of 1088123399440 is 449933218801.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (1088123399449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88315545 + ... + 88327864.

It is an arithmetic number, because the mean of its divisors is an integer number (39426809112).

Almost surely, 2^{1088123399440} is an apocalyptic number.

1088123399440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1088123399440 is an abundant number, since it is smaller than the sum of its proper divisors (2066021329520).

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

1088123399440 is a wasteful number, since it uses less digits than its factorization.

1088123399440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176643440 (or 176643434 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 1088123399440 in words is "one trillion, eighty-eight billion, one hundred twenty-three million, three hundred ninety-nine thousand, four hundred forty".