21049026111434 has 16 divisors (see below), whose sum is σ = 31767768821472. Its totient is φ = 10459771980048.

The previous prime is 21049026111433. The next prime is 21049026111437. The reversal of 21049026111434 is 43411162094012.

It is not an unprimeable number, because it can be changed into a prime (21049026111433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20400632 + ... + 21407564.

It is an arithmetic number, because the mean of its divisors is an integer number (1985485551342).

Almost surely, 2^{21049026111434} is an apocalyptic number.

21049026111434 is a deficient number, since it is larger than the sum of its proper divisors (10718742710038).

21049026111434 is a wasteful number, since it uses less digits than its factorization.

21049026111434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071221.

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 21049026111434 in words is "twenty-one trillion, forty-nine billion, twenty-six million, one hundred eleven thousand, four hundred thirty-four".