38879390745 has 256 divisors, whose sum is σ = 82245058560. Its totient is φ = 17244057600.

The previous prime is 38879390731. The next prime is 38879390747. The reversal of 38879390745 is 54709397883.

It is not a de Polignac number, because 38879390745 - 2⁶ = 38879390681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38879390747) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 117460230 + ... + 117460560.

It is an arithmetic number, because the mean of its divisors is an integer number (321269760).

Almost surely, 2^38879390745 is an apocalyptic number.

It is an amenable number.

38879390745 is an abundant number, since it is smaller than the sum of its proper divisors (43365667815).

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

38879390745 is a wasteful number, since it uses less digits than its factorization.

38879390745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533 (or 527 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 63.

The spelling of 38879390745 in words is "thirty-eight billion, eight hundred seventy-nine million, three hundred ninety thousand, seven hundred forty-five".