39978570049 has 8 divisors (see below), whose sum is σ = 45116881920. Its totient is φ = 35090907600.

The previous prime is 39978570029. The next prime is 39978570059. The reversal of 39978570049 is 94007587993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 39978570049 - 2¹¹ = 39978568001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39978570019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62662017 + ... + 62662654.

It is an arithmetic number, because the mean of its divisors is an integer number (5639610240).

Almost surely, 2^39978570049 is an apocalyptic number.

It is an amenable number.

39978570049 is a deficient number, since it is larger than the sum of its proper divisors (5138311871).

39978570049 is a wasteful number, since it uses less digits than its factorization.

39978570049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125324711.

The product of its (nonzero) digits is 17146080, while the sum is 61.

The spelling of 39978570049 in words is "thirty-nine billion, nine hundred seventy-eight million, five hundred seventy thousand, forty-nine".