39045268982978 has 16 divisors (see below), whose sum is σ = 58895087105400. Its totient is φ = 19413586483200.

The previous prime is 39045268982969. The next prime is 39045268983013. The reversal of 39045268982978 is 87928986254093.

It can be written as a sum of positive squares in 4 ways, for example, as 10700899915729 + 28344369067249 = 3271223^2 + 5323943^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2637698 + ... + 9222146.

Almost surely, 2^{39045268982978} is an apocalyptic number.

39045268982978 is a deficient number, since it is larger than the sum of its proper divisors (19849818122422).

39045268982978 is a wasteful number, since it uses less digits than its factorization.

39045268982978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6601013.

The product of its (nonzero) digits is 3762339840, while the sum is 80.

The spelling of 39045268982978 in words is "thirty-nine trillion, forty-five billion, two hundred sixty-eight million, nine hundred eighty-two thousand, nine hundred seventy-eight".