21422735734 has 8 divisors (see below), whose sum is σ = 32136987960. Its totient is φ = 10710406416.

The previous prime is 21422735731. The next prime is 21422735749. The reversal of 21422735734 is 43753722412.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21422735731) 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, 452544 + ... + 497635.

It is an arithmetic number, because the mean of its divisors is an integer number (4017123495).

Almost surely, 2^21422735734 is an apocalyptic number.

21422735734 is a deficient number, since it is larger than the sum of its proper divisors (10714252226).

21422735734 is a wasteful number, since it uses less digits than its factorization.

21422735734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961454.

The product of its digits is 282240, while the sum is 40.

The spelling of 21422735734 in words is "twenty-one billion, four hundred twenty-two million, seven hundred thirty-five thousand, seven hundred thirty-four".