38678403756081 has 8 divisors (see below), whose sum is σ = 51571864554880. Its totient is φ = 25785272730672.

The previous prime is 38678403756077. The next prime is 38678403756119. The reversal of 38678403756081 is 18065730487683.

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

It is not a de Polignac number, because 38678403756081 - 2² = 38678403756077 is a prime.

It is a super-2 number, since 2×38678403756081² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38678403751081) 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, 82169545 + ... + 82638918.

It is an arithmetic number, because the mean of its divisors is an integer number (6446483069360).

Almost surely, 2^{38678403756081} is an apocalyptic number.

It is an amenable number.

38678403756081 is a deficient number, since it is larger than the sum of its proper divisors (12893460798799).

38678403756081 is a wasteful number, since it uses less digits than its factorization.

38678403756081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164886695.

The product of its (nonzero) digits is 162570240, while the sum is 66.

The spelling of 38678403756081 in words is "thirty-eight trillion, six hundred seventy-eight billion, four hundred three million, seven hundred fifty-six thousand, eighty-one".