44252591769 has 9 divisors (see below), whose sum is σ = 63921321919. Its totient is φ = 29501307120.

The previous prime is 44252591743. The next prime is 44252591783. The reversal of 44252591769 is 96719525244.

It is a happy number.

The square root of 44252591769 is 210363.

It is a perfect power (a square), and thus also a powerful number.

44252591769 is a `hidden beast` number, since 4 + 42 + 5 + 2 + 591 + 7 + 6 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3222038169 + 41030553600 = 56763^2 + 202560^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 44252591769 - 2⁵ = 44252591737 is a prime.

It is a super-2 number, since 2×44252591769² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44252591569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 596029 + ... + 666149.

Almost surely, 2^44252591769 is an apocalyptic number.

44252591769 is the 210363-rd square number.

44252591769 is the 105182-nd centered octagonal number.

It is an amenable number.

44252591769 is a deficient number, since it is larger than the sum of its proper divisors (19668730150).

44252591769 is an frugal number, since it uses more digits than its factorization.

44252591769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140248 (or 70124 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The spelling of 44252591769 in words is "forty-four billion, two hundred fifty-two million, five hundred ninety-one thousand, seven hundred sixty-nine".