38777346677 has 4 divisors (see below), whose sum is σ = 40818259680. Its totient is φ = 36736433676.

The previous prime is 38777346667. The next prime is 38777346679. The reversal of 38777346677 is 77664377783.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77664377783 = 16363 ⋅4746341.

It is a cyclic number.

It is not a de Polignac number, because 38777346677 - 2⁴ = 38777346661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38777346679) 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 3 ways as a sum of consecutive naturals, for example, 1020456473 + ... + 1020456510.

It is an arithmetic number, because the mean of its divisors is an integer number (10204564920).

Almost surely, 2^38777346677 is an apocalyptic number.

It is an amenable number.

38777346677 is a deficient number, since it is larger than the sum of its proper divisors (2040913003).

38777346677 is a wasteful number, since it uses less digits than its factorization.

38777346677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040913002.

The product of its digits is 174254976, while the sum is 65.

The spelling of 38777346677 in words is "thirty-eight billion, seven hundred seventy-seven million, three hundred forty-six thousand, six hundred seventy-seven".