98136517993 has 8 divisors (see below), whose sum is σ = 99985241736. Its totient is φ = 96304992000.

The previous prime is 98136517981. The next prime is 98136518003. The reversal of 98136517993 is 39971563189.

It can be written as a sum of positive squares in 4 ways, for example, as 1684035369 + 96452482624 = 41037^2 + 310568^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 98136517993 - 2¹⁷ = 98136386921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98136515993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4287918 + ... + 4310743.

It is an arithmetic number, because the mean of its divisors is an integer number (12498155217).

Almost surely, 2^98136517993 is an apocalyptic number.

It is an amenable number.

98136517993 is a deficient number, since it is larger than the sum of its proper divisors (1848723743).

98136517993 is a wasteful number, since it uses less digits than its factorization.

98136517993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8598875.

The product of its digits is 11022480, while the sum is 61.

The spelling of 98136517993 in words is "ninety-eight billion, one hundred thirty-six million, five hundred seventeen thousand, nine hundred ninety-three".