38717478448761 has 128 divisors (see below), whose sum is σ = 66594747801600. Its totient is φ = 19494981918720.

The previous prime is 38717478448667. The next prime is 38717478448769. The reversal of 38717478448761 is 16784487471783.

It is not a de Polignac number, because 38717478448761 - 2⁹ = 38717478448249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38717478448769) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 580255881 + ... + 580322601.

It is an arithmetic number, because the mean of its divisors is an integer number (520271467200).

Almost surely, 2^{38717478448761} is an apocalyptic number.

It is an amenable number.

38717478448761 is a deficient number, since it is larger than the sum of its proper divisors (27877269352839).

38717478448761 is a wasteful number, since it uses less digits than its factorization.

38717478448761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68519.

The product of its digits is 1416167424, while the sum is 75.

The spelling of 38717478448761 in words is "thirty-eight trillion, seven hundred seventeen billion, four hundred seventy-eight million, four hundred forty-eight thousand, seven hundred sixty-one".