38431311468401 has 4 divisors (see below), whose sum is σ = 38863123956900. Its totient is φ = 37999498979904.

The previous prime is 38431311468383. The next prime is 38431311468439. The reversal of 38431311468401 is 10486411313483.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13222386787600 + 25208924680801 = 3636260^2 + 5020849^2 .

It is a cyclic number.

It is not a de Polignac number, because 38431311468401 - 2⁶ = 38431311468337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38431311468701) 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, 215906244116 + ... + 215906244293.

It is an arithmetic number, because the mean of its divisors is an integer number (9715780989225).

Almost surely, 2^{38431311468401} is an apocalyptic number.

It is an amenable number.

38431311468401 is a deficient number, since it is larger than the sum of its proper divisors (431812488499).

38431311468401 is an equidigital number, since it uses as much as digits as its factorization.

38431311468401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431812488498.

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 38431311468401 in words is "thirty-eight trillion, four hundred thirty-one billion, three hundred eleven million, four hundred sixty-eight thousand, four hundred one".