38781316742727 has 16 divisors (see below), whose sum is σ = 55686536228960. Its totient is φ = 23865192991872.

The previous prime is 38781316742627. The next prime is 38781316742771. The reversal of 38781316742727 is 72724761318783.

It is a happy number.

It is not a de Polignac number, because 38781316742727 - 2¹⁵ = 38781316709959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38781316742227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 752908 + ... + 8839089.

It is an arithmetic number, because the mean of its divisors is an integer number (3480408514310).

Almost surely, 2^{38781316742727} is an apocalyptic number.

38781316742727 is a deficient number, since it is larger than the sum of its proper divisors (16905219486233).

38781316742727 is a wasteful number, since it uses less digits than its factorization.

38781316742727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9695682.

The product of its digits is 132765696, while the sum is 66.

The spelling of 38781316742727 in words is "thirty-eight trillion, seven hundred eighty-one billion, three hundred sixteen million, seven hundred forty-two thousand, seven hundred twenty-seven".