38769621906 has 16 divisors (see below), whose sum is σ = 80213011200. Its totient is φ = 12477579408.

The previous prime is 38769621871. The next prime is 38769621907. The reversal of 38769621906 is 60912696783.

It is a happy number.

38769621906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (38769621907) 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, 111406786 + ... + 111407133.

It is an arithmetic number, because the mean of its divisors is an integer number (5013313200).

Almost surely, 2^38769621906 is an apocalyptic number.

38769621906 is an abundant number, since it is smaller than the sum of its proper divisors (41443389294).

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

38769621906 is a wasteful number, since it uses less digits than its factorization.

38769621906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222813953.

The product of its (nonzero) digits is 5878656, while the sum is 57.

It can be divided in two parts, 38769 and 621906, that added together give a triangular number (660675 = T₁₁₄₉).

The spelling of 38769621906 in words is "thirty-eight billion, seven hundred sixty-nine million, six hundred twenty-one thousand, nine hundred six".