4444461609551 has 4 divisors (see below), whose sum is σ = 4519791467400. Its totient is φ = 4369131751704.

The previous prime is 4444461609541. The next prime is 4444461609559. The reversal of 4444461609551 is 1559061644444.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4444461609551 - 2⁶ = 4444461609487 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4444461609493 and 4444461609502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4444461609559) 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, 37664928836 + ... + 37664928953.

It is an arithmetic number, because the mean of its divisors is an integer number (1129947866850).

Almost surely, 2^{4444461609551} is an apocalyptic number.

4444461609551 is a deficient number, since it is larger than the sum of its proper divisors (75329857849).

4444461609551 is an equidigital number, since it uses as much as digits as its factorization.

4444461609551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75329857848.

The product of its (nonzero) digits is 8294400, while the sum is 53.

The spelling of 4444461609551 in words is "four trillion, four hundred forty-four billion, four hundred sixty-one million, six hundred nine thousand, five hundred fifty-one".