98933657971601 has 4 divisors (see below), whose sum is σ = 100800330763572. Its totient is φ = 97066985179632.

The previous prime is 98933657971549. The next prime is 98933657971627. The reversal of 98933657971601 is 10617975633989.

It is a Cunningham number, because it is equal to 9946540²+1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 71320997670976 + 27612660300625 = 8445176^2 + 5254775^2 .

It is a cyclic number.

It is not a de Polignac number, because 98933657971601 - 2⁴² = 94535611460497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98933657971651) 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, 933336395906 + ... + 933336396011.

It is an arithmetic number, because the mean of its divisors is an integer number (25200082690893).

Almost surely, 2^{98933657971601} is an apocalyptic number.

It is an amenable number.

98933657971601 is a deficient number, since it is larger than the sum of its proper divisors (1866672791971).

98933657971601 is a wasteful number, since it uses less digits than its factorization.

98933657971601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866672791970.

The product of its (nonzero) digits is 462944160, while the sum is 74.

The spelling of 98933657971601 in words is "ninety-eight trillion, nine hundred thirty-three billion, six hundred fifty-seven million, nine hundred seventy-one thousand, six hundred one".