38108149646 has 8 divisors (see below), whose sum is σ = 65328256560. Its totient is φ = 16332064128.

The previous prime is 38108149643. The next prime is 38108149663. The reversal of 38108149646 is 64694180183.

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

It is a junction number, because it is equal to n+sod(n) for n = 38108149594 and 38108149603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38108149643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1361005331 + ... + 1361005358.

It is an arithmetic number, because the mean of its divisors is an integer number (8166032070).

Almost surely, 2^38108149646 is an apocalyptic number.

38108149646 is a deficient number, since it is larger than the sum of its proper divisors (27220106914).

38108149646 is a wasteful number, since it uses less digits than its factorization.

38108149646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2722010698.

The product of its (nonzero) digits is 995328, while the sum is 50.

The spelling of 38108149646 in words is "thirty-eight billion, one hundred eight million, one hundred forty-nine thousand, six hundred forty-six".