38158638155 has 8 divisors (see below), whose sum is σ = 49953126384. Its totient is φ = 27751736800.

The previous prime is 38158638137. The next prime is 38158638157. The reversal of 38158638155 is 55183685183.

38158638155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 38158638155 - 2¹⁰ = 38158637131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38158638097 and 38158638106.

It is not an unprimeable number, because it can be changed into a prime (38158638157) 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, 346896656 + ... + 346896765.

It is an arithmetic number, because the mean of its divisors is an integer number (6244140798).

Almost surely, 2^38158638155 is an apocalyptic number.

38158638155 is a deficient number, since it is larger than the sum of its proper divisors (11794488229).

38158638155 is a wasteful number, since it uses less digits than its factorization.

38158638155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693793437.

The product of its digits is 3456000, while the sum is 53.

The spelling of 38158638155 in words is "thirty-eight billion, one hundred fifty-eight million, six hundred thirty-eight thousand, one hundred fifty-five".