11019873639 has 4 divisors (see below), whose sum is σ = 14693164856. Its totient is φ = 7346582424.

The previous prime is 11019873619. The next prime is 11019873653. The reversal of 11019873639 is 93637891011.

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

It is not a de Polignac number, because 11019873639 - 2⁵ = 11019873607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11019873619) 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 3 ways as a sum of consecutive naturals, for example, 1836645604 + ... + 1836645609.

It is an arithmetic number, because the mean of its divisors is an integer number (3673291214).

Almost surely, 2^11019873639 is an apocalyptic number.

11019873639 is a deficient number, since it is larger than the sum of its proper divisors (3673291217).

11019873639 is an equidigital number, since it uses as much as digits as its factorization.

11019873639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3673291216.

The product of its (nonzero) digits is 244944, while the sum is 48.

The spelling of 11019873639 in words is "eleven billion, nineteen million, eight hundred seventy-three thousand, six hundred thirty-nine".