38431311468477 has 4 divisors (see below), whose sum is σ = 51241748624640. Its totient is φ = 25620874312316.

The previous prime is 38431311468439. The next prime is 38431311468479. The reversal of 38431311468477 is 77486411313483.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38431311468477 - 2¹⁹ = 38431310944189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38431311468477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38431311468479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6405218578077 + ... + 6405218578082.

It is an arithmetic number, because the mean of its divisors is an integer number (12810437156160).

Almost surely, 2^{38431311468477} is an apocalyptic number.

It is an amenable number.

38431311468477 is a deficient number, since it is larger than the sum of its proper divisors (12810437156163).

38431311468477 is a wasteful number, since it uses less digits than its factorization.

38431311468477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12810437156162.

The product of its digits is 32514048, while the sum is 60.

The spelling of 38431311468477 in words is "thirty-eight trillion, four hundred thirty-one billion, three hundred eleven million, four hundred sixty-eight thousand, four hundred seventy-seven".