38678674561845 has 8 divisors (see below), whose sum is σ = 61885879298976. Its totient is φ = 20628626432976.

The previous prime is 38678674561843. The next prime is 38678674561907. The reversal of 38678674561845 is 54816547687683.

It is a happy number.

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

It is not a de Polignac number, because 38678674561845 - 2¹ = 38678674561843 is a prime.

It is a super-2 number, since 2×38678674561845² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38678674561841) 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, 1289289152047 + ... + 1289289152076.

It is an arithmetic number, because the mean of its divisors is an integer number (7735734912372).

Almost surely, 2^{38678674561845} is an apocalyptic number.

It is an amenable number.

38678674561845 is a deficient number, since it is larger than the sum of its proper divisors (23207204737131).

38678674561845 is a wasteful number, since it uses less digits than its factorization.

38678674561845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578578304131.

The product of its digits is 6502809600, while the sum is 78.

The spelling of 38678674561845 in words is "thirty-eight trillion, six hundred seventy-eight billion, six hundred seventy-four million, five hundred sixty-one thousand, eight hundred forty-five".