39869980375824 has 45 divisors (see below), whose sum is σ = 111580782134133. Its totient is φ = 13289968201536.

The previous prime is 39869980375817. The next prime is 39869980375861. The reversal of 39869980375824 is 42857308996893.

The square root of 39869980375824 is 6314268.

It is a perfect power (a square), and thus also a powerful number.

39869980375824 is a `hidden beast` number, since 3 + 9 + 8 + 6 + 99 + 80 + 375 + 82 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 36286985681424 + 3582994694400 = 6023868^2 + 1892880^2 .

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 75508122 + ... + 76034310.

Almost surely, 2^{39869980375824} is an apocalyptic number.

39869980375824 is the 6314268-th square number.

It is an amenable number.

39869980375824 is an abundant number, since it is smaller than the sum of its proper divisors (71710801758309).

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

39869980375824 is an frugal number, since it uses more digits than its factorization.

39869980375824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052392 (or 526194 counting only the distinct ones).

The product of its (nonzero) digits is 5643509760, while the sum is 81.

The spelling of 39869980375824 in words is "thirty-nine trillion, eight hundred sixty-nine billion, nine hundred eighty million, three hundred seventy-five thousand, eight hundred twenty-four".