1048721113439 has 4 divisors (see below), whose sum is σ = 1048735887360. Its totient is φ = 1048706339520.

The previous prime is 1048721113399. The next prime is 1048721113459. The reversal of 1048721113439 is 9343111278401.

1048721113439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1048721113439 - 2⁸ = 1048721113183 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1048721113439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1048721113459) 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, 7279967 + ... + 7422624.

It is an arithmetic number, because the mean of its divisors is an integer number (262183971840).

Almost surely, 2^{1048721113439} is an apocalyptic number.

1048721113439 is a deficient number, since it is larger than the sum of its proper divisors (14773921).

1048721113439 is an equidigital number, since it uses as much as digits as its factorization.

1048721113439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14773920.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 1048721113439 in words is "one trillion, forty-eight billion, seven hundred twenty-one million, one hundred thirteen thousand, four hundred thirty-nine".