38777338681 has 8 divisors (see below), whose sum is σ = 40632618240. Its totient is φ = 36936168192.

The previous prime is 38777338669. The next prime is 38777338703. The reversal of 38777338681 is 18683377783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38777338681 - 2⁹ = 38777338169 is a prime.

It is a super-2 number, since 2×38777338681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38777338631) 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 7 ways as a sum of consecutive naturals, for example, 3521640 + ... + 3532633.

It is an arithmetic number, because the mean of its divisors is an integer number (5079077280).

Almost surely, 2^38777338681 is an apocalyptic number.

It is an amenable number.

38777338681 is a deficient number, since it is larger than the sum of its proper divisors (1855279559).

38777338681 is a wasteful number, since it uses less digits than its factorization.

38777338681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7054535.

The product of its digits is 28449792, while the sum is 61.

The spelling of 38777338681 in words is "thirty-eight billion, seven hundred seventy-seven million, three hundred thirty-eight thousand, six hundred eighty-one".