88681615349 has 4 divisors (see below), whose sum is σ = 88915604160. Its totient is φ = 88447626540.

The previous prime is 88681615327. The next prime is 88681615391. The reversal of 88681615349 is 94351618688.

It is a happy number.

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 not a de Polignac number, because 88681615349 - 2²⁸ = 88413179893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88681615249) 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, 116993837 + ... + 116994594.

It is an arithmetic number, because the mean of its divisors is an integer number (22228901040).

Almost surely, 2^88681615349 is an apocalyptic number.

It is an amenable number.

88681615349 is a deficient number, since it is larger than the sum of its proper divisors (233988811).

88681615349 is a wasteful number, since it uses less digits than its factorization.

88681615349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233988810.

The product of its digits is 9953280, while the sum is 59.

The spelling of 88681615349 in words is "eighty-eight billion, six hundred eighty-one million, six hundred fifteen thousand, three hundred forty-nine".