4921564441 has 4 divisors (see below), whose sum is σ = 5036019472. Its totient is φ = 4807109412.

The previous prime is 4921564429. The next prime is 4921564463. The reversal of 4921564441 is 1444651294.

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 4921564441 - 2¹⁵ = 4921531673 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4921564394 and 4921564403.

It is not an unprimeable number, because it can be changed into a prime (4921564841) 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, 57227451 + ... + 57227536.

It is an arithmetic number, because the mean of its divisors is an integer number (1259004868).

Almost surely, 2^4921564441 is an apocalyptic number.

It is an amenable number.

4921564441 is a deficient number, since it is larger than the sum of its proper divisors (114455031).

4921564441 is a wasteful number, since it uses less digits than its factorization.

4921564441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114455030.

The product of its digits is 138240, while the sum is 40.

The square root of 4921564441 is about 70153.8626235220. The cubic root of 4921564441 is about 1700.9872513547.

The spelling of 4921564441 in words is "four billion, nine hundred twenty-one million, five hundred sixty-four thousand, four hundred forty-one".