38426865661021 has 8 divisors (see below), whose sum is σ = 40693949532864. Its totient is φ = 36160524012480.

The previous prime is 38426865660977. The next prime is 38426865661033. The reversal of 38426865661021 is 12016656862483.

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

It is a cyclic number.

It is not a de Polignac number, because 38426865661021 - 2⁴³ = 29630772638813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38426865661721) 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, 185449225 + ... + 185656318.

It is an arithmetic number, because the mean of its divisors is an integer number (5086743691608).

Almost surely, 2^{38426865661021} is an apocalyptic number.

It is an amenable number.

38426865661021 is a deficient number, since it is larger than the sum of its proper divisors (2267083871843).

38426865661021 is a wasteful number, since it uses less digits than its factorization.

38426865661021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371111651.

The product of its (nonzero) digits is 19906560, while the sum is 58.

The spelling of 38426865661021 in words is "thirty-eight trillion, four hundred twenty-six billion, eight hundred sixty-five million, six hundred sixty-one thousand, twenty-one".