39794130064 has 80 divisors (see below), whose sum is σ = 86902687872. Its totient is φ = 17515137024.

The previous prime is 39794130053. The next prime is 39794130067. The reversal of 39794130064 is 46003149793.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 39794129996 and 39794130023.

It is not an unprimeable number, because it can be changed into a prime (39794130067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1599867 + ... + 1624549.

Almost surely, 2^39794130064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39794130064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43451343936).

39794130064 is an abundant number, since it is smaller than the sum of its proper divisors (47108557808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39794130064 is a wasteful number, since it uses less digits than its factorization.

39794130064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25064 (or 25058 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 46.

The spelling of 39794130064 in words is "thirty-nine billion, seven hundred ninety-four million, one hundred thirty thousand, sixty-four".