98711585793 has 20 divisors (see below), whose sum is σ = 152214763008. Its totient is φ = 63684892440.

The previous prime is 98711585783. The next prime is 98711585809. The reversal of 98711585793 is 39758511789.

98711585793 is a `hidden beast` number, since 9 + 8 + 7 + 1 + 1 + 58 + 579 + 3 = 666.

It is not a de Polignac number, because 98711585793 - 2²¹ = 98709488641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 98711585793.

It is not an unprimeable number, because it can be changed into a prime (98711585743) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19653321 + ... + 19658342.

Almost surely, 2^98711585793 is an apocalyptic number.

98711585793 is a gapful number since it is divisible by the number (93) formed by its first and last digit.

It is an amenable number.

98711585793 is a deficient number, since it is larger than the sum of its proper divisors (53503177215).

98711585793 is a wasteful number, since it uses less digits than its factorization.

98711585793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39311706 (or 39311697 counting only the distinct ones).

The product of its digits is 19051200, while the sum is 63.

Adding to 98711585793 its sum of digits (63), we get a square (98711585856 = 314184²).

The spelling of 98711585793 in words is "ninety-eight billion, seven hundred eleven million, five hundred eighty-five thousand, seven hundred ninety-three".