38994329697078 has 64 divisors (see below), whose sum is σ = 89161382177280. Its totient is φ = 11137302144000.

The previous prime is 38994329697077. The next prime is 38994329697101. The reversal of 38994329697078 is 87079692349983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38994329697077) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2119132678 + ... + 2119151078.

It is an arithmetic number, because the mean of its divisors is an integer number (1393146596520).

Almost surely, 2^{38994329697078} is an apocalyptic number.

38994329697078 is an abundant number, since it is smaller than the sum of its proper divisors (50167052480202).

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

38994329697078 is a wasteful number, since it uses less digits than its factorization.

38994329697078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33493.

The product of its (nonzero) digits is 8888527872, while the sum is 84.

The spelling of 38994329697078 in words is "thirty-eight trillion, nine hundred ninety-four billion, three hundred twenty-nine million, six hundred ninety-seven thousand, seventy-eight".