39494383136 has 192 divisors, whose sum is σ = 93922416000. Its totient is φ = 16149528576.

The previous prime is 39494383121. The next prime is 39494383177. The reversal of 39494383136 is 63138349493.

It is a happy number.

It is a super-2 number, since 2×39494383136² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23244815 + ... + 23246513.

It is an arithmetic number, because the mean of its divisors is an integer number (489179250).

Almost surely, 2^39494383136 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 39494383136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46961208000).

39494383136 is an abundant number, since it is smaller than the sum of its proper divisors (54428032864).

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

39494383136 is a wasteful number, since it uses less digits than its factorization.

39494383136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931 (or 1923 counting only the distinct ones).

The product of its digits is 5038848, while the sum is 53.

The spelling of 39494383136 in words is "thirty-nine billion, four hundred ninety-four million, three hundred eighty-three thousand, one hundred thirty-six".