38761628861 has 4 divisors (see below), whose sum is σ = 38764549824. Its totient is φ = 38758707900.

The previous prime is 38761628831. The next prime is 38761628881. The reversal of 38761628861 is 16882616783.

38761628861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 38761628861 - 2¹⁸ = 38761366717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38761628797 and 38761628806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38761628831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1440485 + ... + 1467146.

It is an arithmetic number, because the mean of its divisors is an integer number (9691137456).

Almost surely, 2^38761628861 is an apocalyptic number.

It is an amenable number.

38761628861 is a deficient number, since it is larger than the sum of its proper divisors (2920963).

38761628861 is a wasteful number, since it uses less digits than its factorization.

38761628861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2920962.

The product of its digits is 4644864, while the sum is 56.

The spelling of 38761628861 in words is "thirty-eight billion, seven hundred sixty-one million, six hundred twenty-eight thousand, eight hundred sixty-one".