38661723838 has 8 divisors (see below), whose sum is σ = 57999707640. Its totient is φ = 19328487960.

The previous prime is 38661723827. The next prime is 38661723871. The reversal of 38661723838 is 83832716683.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1166553 + ... + 1199236.

It is an arithmetic number, because the mean of its divisors is an integer number (7249963455).

Almost surely, 2^38661723838 is an apocalyptic number.

38661723838 is a deficient number, since it is larger than the sum of its proper divisors (19337983802).

38661723838 is a wasteful number, since it uses less digits than its factorization.

38661723838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373962.

The product of its digits is 6967296, while the sum is 55.

The spelling of 38661723838 in words is "thirty-eight billion, six hundred sixty-one million, seven hundred twenty-three thousand, eight hundred thirty-eight".