88629692689 has 4 divisors (see below), whose sum is σ = 88669926256. Its totient is φ = 88589459124.

The previous prime is 88629692653. The next prime is 88629692693. The reversal of 88629692689 is 98629692688.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88629692689 is a prime.

It is a super-2 number, since 2×88629692689² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88629392689) 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 3 ways as a sum of consecutive naturals, for example, 20113479 + ... + 20117884.

It is an arithmetic number, because the mean of its divisors is an integer number (22167481564).

Almost surely, 2^88629692689 is an apocalyptic number.

It is an amenable number.

88629692689 is a deficient number, since it is larger than the sum of its proper divisors (40233567).

88629692689 is a wasteful number, since it uses less digits than its factorization.

88629692689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40233566.

The product of its digits is 322486272, while the sum is 73.

Subtracting 88629692689 from its reverse (98629692688), we obtain a palindrome (9999999999).

The spelling of 88629692689 in words is "eighty-eight billion, six hundred twenty-nine million, six hundred ninety-two thousand, six hundred eighty-nine".