88424747015921 has 8 divisors (see below), whose sum is σ = 88504449888360. Its totient is φ = 88345074601728.

The previous prime is 88424747015897. The next prime is 88424747015929. The reversal of 88424747015921 is 12951074742488.

It can be written as a sum of positive squares in 4 ways, for example, as 4556790392896 + 83867956623025 = 2134664^2 + 9157945^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88424747015921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (88424747015929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1803656 + ... + 13420233.

It is an arithmetic number, because the mean of its divisors is an integer number (11063056236045).

Almost surely, 2^{88424747015921} is an apocalyptic number.

It is an amenable number.

88424747015921 is a deficient number, since it is larger than the sum of its proper divisors (79702872439).

88424747015921 is a wasteful number, since it uses less digits than its factorization.

88424747015921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15229123.

The product of its (nonzero) digits is 36126720, while the sum is 62.

The spelling of 88424747015921 in words is "eighty-eight trillion, four hundred twenty-four billion, seven hundred forty-seven million, fifteen thousand, nine hundred twenty-one".