264020642441 has 4 divisors (see below), whose sum is σ = 275499800832. Its totient is φ = 252541484052.

The previous prime is 264020642411. The next prime is 264020642447. The reversal of 264020642441 is 144246020462.

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: 144246020462 = 2 ⋅72123010231.

It is a de Polignac number, because none of the positive numbers 2^k-264020642441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264020642447) 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, 5739579161 + ... + 5739579206.

It is an arithmetic number, because the mean of its divisors is an integer number (68874950208).

Almost surely, 2^264020642441 is an apocalyptic number.

It is an amenable number.

264020642441 is a deficient number, since it is larger than the sum of its proper divisors (11479158391).

264020642441 is a wasteful number, since it uses less digits than its factorization.

264020642441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11479158390.

The product of its (nonzero) digits is 73728, while the sum is 35.

The spelling of 264020642441 in words is "two hundred sixty-four billion, twenty million, six hundred forty-two thousand, four hundred forty-one".