39516949960 has 64 divisors (see below), whose sum is σ = 90564117120. Its totient is φ = 15515243520.

The previous prime is 39516949931. The next prime is 39516949961. The reversal of 39516949960 is 6994961593.

It is a super-2 number, since 2×39516949960² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39516949961) 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 15 ways as a sum of consecutive naturals, for example, 614032 + ... + 675328.

It is an arithmetic number, because the mean of its divisors is an integer number (1415064330).

Almost surely, 2^39516949960 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 39516949960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45282058560).

39516949960 is an abundant number, since it is smaller than the sum of its proper divisors (51047167160).

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

39516949960 is a wasteful number, since it uses less digits than its factorization.

39516949960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61606 (or 61602 counting only the distinct ones).

The product of its (nonzero) digits is 14171760, while the sum is 61.

The spelling of 39516949960 in words is "thirty-nine billion, five hundred sixteen million, nine hundred forty-nine thousand, nine hundred sixty".