39339779652 has 60 divisors (see below), whose sum is σ = 102873452220. Its totient is φ = 13109243904.

The previous prime is 39339779561. The next prime is 39339779701. The reversal of 39339779652 is 25697793393.

It can be written as a sum of positive squares in 2 ways, for example, as 1035809856 + 38303969796 = 32184^2 + 195714^2 .

It is a super-2 number, since 2×39339779652² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 39339779652.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1155124 + ... + 1188692.

It is an arithmetic number, because the mean of its divisors is an integer number (1714557537).

Almost surely, 2^39339779652 is an apocalyptic number.

It is an amenable number.

39339779652 is an abundant number, since it is smaller than the sum of its proper divisors (63533672568).

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

39339779652 is a wasteful number, since it uses less digits than its factorization.

39339779652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37202 (or 37191 counting only the distinct ones).

The product of its digits is 57868020, while the sum is 63.

The spelling of 39339779652 in words is "thirty-nine billion, three hundred thirty-nine million, seven hundred seventy-nine thousand, six hundred fifty-two".