38781971601 has 8 divisors (see below), whose sum is σ = 51717029760. Its totient is φ = 25850780592.

The previous prime is 38781971573. The next prime is 38781971611. The reversal of 38781971601 is 10617918783.

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

It is not a de Polignac number, because 38781971601 - 2²⁶ = 38714862737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38781971611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 943305 + ... + 983558.

It is an arithmetic number, because the mean of its divisors is an integer number (6464628720).

Almost surely, 2^38781971601 is an apocalyptic number.

It is an amenable number.

38781971601 is a deficient number, since it is larger than the sum of its proper divisors (12935058159).

38781971601 is a wasteful number, since it uses less digits than its factorization.

38781971601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933575.

The product of its (nonzero) digits is 508032, while the sum is 51.

The spelling of 38781971601 in words is "thirty-eight billion, seven hundred eighty-one million, nine hundred seventy-one thousand, six hundred one".