9744420129653 has 4 divisors (see below), whose sum is σ = 10630276505088. Its totient is φ = 8858563754220.

The previous prime is 9744420129611. The next prime is 9744420129679. The reversal of 9744420129653 is 3569210244479.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9744420129653 - 2⁶ = 9744420129589 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 (9744420129253) 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, 442928187701 + ... + 442928187722.

It is an arithmetic number, because the mean of its divisors is an integer number (2657569126272).

Almost surely, 2^{9744420129653} is an apocalyptic number.

It is an amenable number.

9744420129653 is a deficient number, since it is larger than the sum of its proper divisors (885856375435).

9744420129653 is a wasteful number, since it uses less digits than its factorization.

9744420129653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885856375434.

The product of its (nonzero) digits is 13063680, while the sum is 56.

The spelling of 9744420129653 in words is "nine trillion, seven hundred forty-four billion, four hundred twenty million, one hundred twenty-nine thousand, six hundred fifty-three".