39981394153 has 4 divisors (see below), whose sum is σ = 39993966148. Its totient is φ = 39968822160.

The previous prime is 39981394147. The next prime is 39981394207. The reversal of 39981394153 is 35149318993.

39981394153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35149318993 = 83 ⋅423485771.

It can be written as a sum of positive squares in 2 ways, for example, as 6969411289 + 33011982864 = 83483^2 + 181692^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39981394153 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39981394094 and 39981394103.

It is not an unprimeable number, because it can be changed into a prime (39981394133) 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, 6281226 + ... + 6287587.

It is an arithmetic number, because the mean of its divisors is an integer number (9998491537).

Almost surely, 2^39981394153 is an apocalyptic number.

It is an amenable number.

39981394153 is a deficient number, since it is larger than the sum of its proper divisors (12571995).

39981394153 is a wasteful number, since it uses less digits than its factorization.

39981394153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12571994.

The product of its digits is 3149280, while the sum is 55.

The spelling of 39981394153 in words is "thirty-nine billion, nine hundred eighty-one million, three hundred ninety-four thousand, one hundred fifty-three".