21445070126 has 8 divisors (see below), whose sum is σ = 32227066344. Its totient is φ = 10702714680.

The previous prime is 21445070117. The next prime is 21445070149. The reversal of 21445070126 is 62107054412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21445070092 and 21445070101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9908840 + ... + 9911003.

It is an arithmetic number, because the mean of its divisors is an integer number (4028383293).

Almost surely, 2^21445070126 is an apocalyptic number.

21445070126 is a deficient number, since it is larger than the sum of its proper divisors (10781996218).

21445070126 is a wasteful number, since it uses less digits than its factorization.

21445070126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19820386.

The product of its (nonzero) digits is 13440, while the sum is 32.

The spelling of 21445070126 in words is "twenty-one billion, four hundred forty-five million, seventy thousand, one hundred twenty-six".