38431311468478 has 48 divisors (see below), whose sum is σ = 61221569584896. Its totient is φ = 18088724079360.

The previous prime is 38431311468439. The next prime is 38431311468479. The reversal of 38431311468478 is 87486411313483.

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 23 ways as a sum of consecutive naturals, for example, 34751523 + ... + 35840353.

It is an arithmetic number, because the mean of its divisors is an integer number (1275449366352).

Almost surely, 2^{38431311468478} is an apocalyptic number.

38431311468478 is a deficient number, since it is larger than the sum of its proper divisors (22790258116418).

38431311468478 is a wasteful number, since it uses less digits than its factorization.

38431311468478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089409 (or 1089386 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 61.

The spelling of 38431311468478 in words is "thirty-eight trillion, four hundred thirty-one billion, three hundred eleven million, four hundred sixty-eight thousand, four hundred seventy-eight".