88720860959569 has 4 divisors (see below), whose sum is σ = 88720893052596. Its totient is φ = 88720828866544.

The previous prime is 88720860959537. The next prime is 88720860959573. The reversal of 88720860959569 is 96595906802788.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62514007296400 + 26206853663169 = 7906580^2 + 5119263^2 .

It is a cyclic number.

It is not a de Polignac number, because 88720860959569 - 2⁵ = 88720860959537 is a prime.

It is a super-2 number, since 2×88720860959569² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 88720860959492 and 88720860959501.

It is not an unprimeable number, because it can be changed into a prime (88720860959519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11463454 + ... + 17574199.

It is an arithmetic number, because the mean of its divisors is an integer number (22180223263149).

Almost surely, 2^{88720860959569} is an apocalyptic number.

It is an amenable number.

88720860959569 is a deficient number, since it is larger than the sum of its proper divisors (32093027).

88720860959569 is a wasteful number, since it uses less digits than its factorization.

88720860959569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32093026.

The product of its (nonzero) digits is 4702924800, while the sum is 82.

The spelling of 88720860959569 in words is "eighty-eight trillion, seven hundred twenty billion, eight hundred sixty million, nine hundred fifty-nine thousand, five hundred sixty-nine".