39794130081 has 24 divisors (see below), whose sum is σ = 60674328000. Its totient is φ = 25063087392.

The previous prime is 39794130067. The next prime is 39794130113. The reversal of 39794130081 is 18003149793.

It is not a de Polignac number, because 39794130081 - 2¹³ = 39794121889 is a prime.

It is a super-2 number, since 2×39794130081² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39794130581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 262726 + ... + 385503.

It is an arithmetic number, because the mean of its divisors is an integer number (2528097000).

Almost surely, 2^39794130081 is an apocalyptic number.

It is an amenable number.

39794130081 is a deficient number, since it is larger than the sum of its proper divisors (20880197919).

39794130081 is a wasteful number, since it uses less digits than its factorization.

39794130081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648613 (or 648610 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 39794130081 in words is "thirty-nine billion, seven hundred ninety-four million, one hundred thirty thousand, eighty-one".