38073040778 has 16 divisors (see below), whose sum is σ = 60485450760. Its totient is φ = 17911835136.

The previous prime is 38073040771. The next prime is 38073040799. The reversal of 38073040778 is 87704037083.

It can be written as a sum of positive squares in 4 ways, for example, as 37889790409 + 183250369 = 194653^2 + 13537^2 .

It is not an unprimeable number, because it can be changed into a prime (38073040771) 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, 24851 + ... + 277062.

Almost surely, 2^38073040778 is an apocalyptic number.

38073040778 is a deficient number, since it is larger than the sum of its proper divisors (22412409982).

38073040778 is a wasteful number, since it uses less digits than its factorization.

38073040778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305641.

The product of its (nonzero) digits is 790272, while the sum is 47.

The spelling of 38073040778 in words is "thirty-eight billion, seventy-three million, forty thousand, seven hundred seventy-eight".