3985412309453 has 4 divisors (see below), whose sum is σ = 4011805768608. Its totient is φ = 3959018850300.

The previous prime is 3985412309413. The next prime is 3985412309497. The reversal of 3985412309453 is 3549032145893.

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 3985412309453 - 2²⁶ = 3985345200589 is a prime.

It is a super-2 number, since 2×3985412309453² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3985412309413) 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, 13196729351 + ... + 13196729652.

It is an arithmetic number, because the mean of its divisors is an integer number (1002951442152).

Almost surely, 2^{3985412309453} is an apocalyptic number.

It is an amenable number.

3985412309453 is a deficient number, since it is larger than the sum of its proper divisors (26393459155).

3985412309453 is a wasteful number, since it uses less digits than its factorization.

3985412309453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26393459154.

The product of its (nonzero) digits is 13996800, while the sum is 56.

The spelling of 3985412309453 in words is "three trillion, nine hundred eighty-five billion, four hundred twelve million, three hundred nine thousand, four hundred fifty-three".