44664026545 has 4 divisors (see below), whose sum is σ = 53596831860. Its totient is φ = 35731221232.

The previous prime is 44664026527. The next prime is 44664026597. The reversal of 44664026545 is 54562046644.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23492612529 + 21171414016 = 153273^2 + 145504^2 .

It is a cyclic number.

It is not a de Polignac number, because 44664026545 - 2¹³ = 44664018353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44664026495 and 44664026504.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4466402650 + ... + 4466402659.

It is an arithmetic number, because the mean of its divisors is an integer number (13399207965).

Almost surely, 2^44664026545 is an apocalyptic number.

It is an amenable number.

44664026545 is a deficient number, since it is larger than the sum of its proper divisors (8932805315).

44664026545 is an equidigital number, since it uses as much as digits as its factorization.

44664026545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8932805314.

The product of its (nonzero) digits is 2764800, while the sum is 46.

The spelling of 44664026545 in words is "forty-four billion, six hundred sixty-four million, twenty-six thousand, five hundred forty-five".