44491561769 has 16 divisors (see below), whose sum is σ = 45849323520. Its totient is φ = 43149229200.

The previous prime is 44491561759. The next prime is 44491561819. The reversal of 44491561769 is 96716519444.

It is a cyclic number.

It is not a de Polignac number, because 44491561769 - 2¹⁶ = 44491496233 is a prime.

It is a super-2 number, since 2×44491561769² (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 (44491561759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5591744 + ... + 5599694.

It is an arithmetic number, because the mean of its divisors is an integer number (2865582720).

Almost surely, 2^44491561769 is an apocalyptic number.

It is an amenable number.

44491561769 is a deficient number, since it is larger than the sum of its proper divisors (1357761751).

44491561769 is a wasteful number, since it uses less digits than its factorization.

44491561769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8900.

The product of its digits is 6531840, while the sum is 56.

The spelling of 44491561769 in words is "forty-four billion, four hundred ninety-one million, five hundred sixty-one thousand, seven hundred sixty-nine".