38678653557446 has 8 divisors (see below), whose sum is σ = 66306263241360. Its totient is φ = 16576565810328.

The previous prime is 38678653557437. The next prime is 38678653557449. The reversal of 38678653557446 is 64475535687683.

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

It is a super-2 number, since 2×38678653557446² (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 (38678653557449) 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, 1381380484181 + ... + 1381380484208.

It is an arithmetic number, because the mean of its divisors is an integer number (8288282905170).

Almost surely, 2^{38678653557446} is an apocalyptic number.

38678653557446 is a deficient number, since it is larger than the sum of its proper divisors (27627609683914).

38678653557446 is a wasteful number, since it uses less digits than its factorization.

38678653557446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2762760968398.

The product of its digits is 12192768000, while the sum is 77.

The spelling of 38678653557446 in words is "thirty-eight trillion, six hundred seventy-eight billion, six hundred fifty-three million, five hundred fifty-seven thousand, four hundred forty-six".