38781428793 has 8 divisors (see below), whose sum is σ = 51735952800. Its totient is φ = 25840595328.

The previous prime is 38781428783. The next prime is 38781428831. The reversal of 38781428793 is 39782418783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38781428793 - 2¹⁴ = 38781412409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38781428783) 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, 3416023 + ... + 3427356.

It is an arithmetic number, because the mean of its divisors is an integer number (6466994100).

Almost surely, 2^38781428793 is an apocalyptic number.

It is an amenable number.

38781428793 is a deficient number, since it is larger than the sum of its proper divisors (12954524007).

38781428793 is a wasteful number, since it uses less digits than its factorization.

38781428793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6845271.

The product of its digits is 16257024, while the sum is 60.

The spelling of 38781428793 in words is "thirty-eight billion, seven hundred eighty-one million, four hundred twenty-eight thousand, seven hundred ninety-three".