38274406561 has 4 divisors (see below), whose sum is σ = 38758892800. Its totient is φ = 37789920324.

The previous prime is 38274406549. The next prime is 38274406571. The reversal of 38274406561 is 16560447283.

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: 16560447283 = 43 ⋅385126681.

It is a cyclic number.

It is not a de Polignac number, because 38274406561 - 2⁵ = 38274406529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38274406571) 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, 242243001 + ... + 242243158.

It is an arithmetic number, because the mean of its divisors is an integer number (9689723200).

Almost surely, 2^38274406561 is an apocalyptic number.

It is an amenable number.

38274406561 is a deficient number, since it is larger than the sum of its proper divisors (484486239).

38274406561 is an equidigital number, since it uses as much as digits as its factorization.

38274406561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484486238.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 38274406561 in words is "thirty-eight billion, two hundred seventy-four million, four hundred six thousand, five hundred sixty-one".