39801620195 has 4 divisors (see below), whose sum is σ = 47761944240. Its totient is φ = 31841296152.

The previous prime is 39801620189. The next prime is 39801620207. The reversal of 39801620195 is 59102610893.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59102610893 = 211747 ⋅279119.

It is a cyclic number.

It is not a de Polignac number, because 39801620195 - 2¹⁰ = 39801619171 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3980162015 + ... + 3980162024.

It is an arithmetic number, because the mean of its divisors is an integer number (11940486060).

Almost surely, 2^39801620195 is an apocalyptic number.

39801620195 is a deficient number, since it is larger than the sum of its proper divisors (7960324045).

39801620195 is an equidigital number, since it uses as much as digits as its factorization.

39801620195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7960324044.

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 39801620195 in words is "thirty-nine billion, eight hundred one million, six hundred twenty thousand, one hundred ninety-five".