988536108857 has 4 divisors (see below), whose sum is σ = 1078403027856. Its totient is φ = 898669189860.

The previous prime is 988536108853. The next prime is 988536108863. The reversal of 988536108857 is 758801635889.

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 988536108857 - 2² = 988536108853 is a prime.

It is not an unprimeable number, because it can be changed into a prime (988536108851) 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, 44933459483 + ... + 44933459504.

It is an arithmetic number, because the mean of its divisors is an integer number (269600756964).

Almost surely, 2^988536108857 is an apocalyptic number.

It is an amenable number.

988536108857 is a deficient number, since it is larger than the sum of its proper divisors (89866918999).

988536108857 is a wasteful number, since it uses less digits than its factorization.

988536108857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89866918998.

The product of its (nonzero) digits is 116121600, while the sum is 68.

Multiplying 988536108857 by its sum of digits (68), we get a palindrome (67220455402276).

The spelling of 988536108857 in words is "nine hundred eighty-eight billion, five hundred thirty-six million, one hundred eight thousand, eight hundred fifty-seven".