389516526840641 has 4 divisors (see below), whose sum is σ = 389517836424192. Its totient is φ = 389515217257092.

The previous prime is 389516526840629. The next prime is 389516526840671. The reversal of 389516526840641 is 146048625615983.

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 389516526840641 - 2¹⁸ = 389516526578497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389516526840671) 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, 654345521 + ... + 654940526.

It is an arithmetic number, because the mean of its divisors is an integer number (97379459106048).

Almost surely, 2^{389516526840641} is an apocalyptic number.

It is an amenable number.

389516526840641 is a deficient number, since it is larger than the sum of its proper divisors (1309583551).

389516526840641 is a wasteful number, since it uses less digits than its factorization.

389516526840641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309583550.

The product of its (nonzero) digits is 298598400, while the sum is 68.

The spelling of 389516526840641 in words is "three hundred eighty-nine trillion, five hundred sixteen billion, five hundred twenty-six million, eight hundred forty thousand, six hundred forty-one".