1079904449989 has 16 divisors (see below), whose sum is σ = 1118394376704. Its totient is φ = 1041646276800.

The previous prime is 1079904449983. The next prime is 1079904450029. The reversal of 1079904449989 is 9899444099701.

It is not a de Polignac number, because 1079904449989 - 2⁵ = 1079904449957 is a prime.

It is a super-2 number, since 2×1079904449989² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1079904449983) 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, 20011734 + ... + 20065624.

It is an arithmetic number, because the mean of its divisors is an integer number (69899648544).

Almost surely, 2^{1079904449989} is an apocalyptic number.

It is an amenable number.

1079904449989 is a deficient number, since it is larger than the sum of its proper divisors (38489926715).

1079904449989 is a wasteful number, since it uses less digits than its factorization.

1079904449989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56028.

The product of its (nonzero) digits is 211631616, while the sum is 73.

The spelling of 1079904449989 in words is "one trillion, seventy-nine billion, nine hundred four million, four hundred forty-nine thousand, nine hundred eighty-nine".