38717688673345 has 32 divisors (see below), whose sum is σ = 50737011393024. Its totient is φ = 28129415731200.

The previous prime is 38717688673343. The next prime is 38717688673351. The reversal of 38717688673345 is 54337688671783.

It is not a de Polignac number, because 38717688673345 - 2¹ = 38717688673343 is a prime.

It is a super-2 number, since 2×38717688673345² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38717688673343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 577557949 + ... + 577624981.

It is an arithmetic number, because the mean of its divisors is an integer number (1585531606032).

Almost surely, 2^{38717688673345} is an apocalyptic number.

It is an amenable number.

38717688673345 is a deficient number, since it is larger than the sum of its proper divisors (12019322719679).

38717688673345 is a wasteful number, since it uses less digits than its factorization.

38717688673345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77673.

The product of its digits is 3413975040, while the sum is 76.

The spelling of 38717688673345 in words is "thirty-eight trillion, seven hundred seventeen billion, six hundred eighty-eight million, six hundred seventy-three thousand, three hundred forty-five".