39061981320 has 128 divisors (see below), whose sum is σ = 119278224000. Its totient is φ = 10230865920.

The previous prime is 39061981313. The next prime is 39061981337. The reversal of 39061981320 is 2318916093.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12324696 + ... + 12327864.

It is an arithmetic number, because the mean of its divisors is an integer number (931861125).

Almost surely, 2^39061981320 is an apocalyptic number.

39061981320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39061981320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59639112000).

39061981320 is an abundant number, since it is smaller than the sum of its proper divisors (80216242680).

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

39061981320 is a wasteful number, since it uses less digits than its factorization.

39061981320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4983 (or 4979 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The spelling of 39061981320 in words is "thirty-nine billion, sixty-one million, nine hundred eighty-one thousand, three hundred twenty".