39898236101 has 2 divisors, whose sum is σ = 39898236102. Its totient is φ = 39898236100.

The previous prime is 39898236089. The next prime is 39898236121. The reversal of 39898236101 is 10163289893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36376407076 + 3521829025 = 190726^2 + 59345^2 .

It is a cyclic number.

It is not a de Polignac number, because 39898236101 - 2¹⁰ = 39898235077 is a prime.

It is a super-2 number, since 2×39898236101² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 39898236101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39898236121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19949118050 + 19949118051.

It is an arithmetic number, because the mean of its divisors is an integer number (19949118051).

Almost surely, 2^39898236101 is an apocalyptic number.

It is an amenable number.

39898236101 is a deficient number, since it is larger than the sum of its proper divisors (1).

39898236101 is an equidigital number, since it uses as much as digits as its factorization.

39898236101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 50.

The spelling of 39898236101 in words is "thirty-nine billion, eight hundred ninety-eight million, two hundred thirty-six thousand, one hundred one".