88685477687 has 4 divisors (see below), whose sum is σ = 89198110680. Its totient is φ = 88172844696.

The previous prime is 88685477653. The next prime is 88685477723. The reversal of 88685477687 is 78677458688.

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

It is a cyclic number.

It is not a de Polignac number, because 88685477687 - 2³⁰ = 87611735863 is a prime.

It is a super-2 number, since 2×88685477687² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88685477627) 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, 256316237 + ... + 256316582.

It is an arithmetic number, because the mean of its divisors is an integer number (22299527670).

Almost surely, 2^88685477687 is an apocalyptic number.

88685477687 is a deficient number, since it is larger than the sum of its proper divisors (512632993).

88685477687 is a wasteful number, since it uses less digits than its factorization.

88685477687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512632992.

The product of its digits is 1011548160, while the sum is 74.

The spelling of 88685477687 in words is "eighty-eight billion, six hundred eighty-five million, four hundred seventy-seven thousand, six hundred eighty-seven".