39325396961 has 4 divisors (see below), whose sum is σ = 39488573124. Its totient is φ = 39162220800.

The previous prime is 39325396951. The next prime is 39325396967. The reversal of 39325396961 is 16969352393.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16969352393 = 7 ⋅2424193199.

It can be written as a sum of positive squares in 2 ways, for example, as 35006410000 + 4318986961 = 187100^2 + 65719^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39325396961 is a prime.

It is a super-2 number, since 2×39325396961² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39325396897 and 39325396906.

It is not an unprimeable number, because it can be changed into a prime (39325396967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81587720 + ... + 81588201.

It is an arithmetic number, because the mean of its divisors is an integer number (9872143281).

Almost surely, 2^39325396961 is an apocalyptic number.

It is an amenable number.

39325396961 is a deficient number, since it is larger than the sum of its proper divisors (163176163).

39325396961 is a wasteful number, since it uses less digits than its factorization.

39325396961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163176162.

The product of its digits is 7085880, while the sum is 56.

The spelling of 39325396961 in words is "thirty-nine billion, three hundred twenty-five million, three hundred ninety-six thousand, nine hundred sixty-one".