38682553040661 has 4 divisors (see below), whose sum is σ = 51576737387552. Its totient is φ = 25788368693772.

The previous prime is 38682553040629. The next prime is 38682553040683. The reversal of 38682553040661 is 16604035528683.

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 not a de Polignac number, because 38682553040661 - 2⁵ = 38682553040629 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 (38682553060661) 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, 6447092173441 + ... + 6447092173446.

It is an arithmetic number, because the mean of its divisors is an integer number (12894184346888).

Almost surely, 2^{38682553040661} is an apocalyptic number.

It is an amenable number.

38682553040661 is a deficient number, since it is larger than the sum of its proper divisors (12894184346891).

38682553040661 is a wasteful number, since it uses less digits than its factorization.

38682553040661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12894184346890.

The product of its (nonzero) digits is 24883200, while the sum is 57.

The spelling of 38682553040661 in words is "thirty-eight trillion, six hundred eighty-two billion, five hundred fifty-three million, forty thousand, six hundred sixty-one".