53450709999 has 16 divisors (see below), whose sum is σ = 76930560000. Its totient is φ = 32909181536.

The previous prime is 53450709943. The next prime is 53450710007. The reversal of 53450709999 is 99990705435.

It is a cyclic number.

It is not a de Polignac number, because 53450709999 - 2¹⁶ = 53450644463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53450702999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13353999 + ... + 13358000.

It is an arithmetic number, because the mean of its divisors is an integer number (4808160000).

Almost surely, 2^53450709999 is an apocalyptic number.

53450709999 is a deficient number, since it is larger than the sum of its proper divisors (23479850001).

53450709999 is a wasteful number, since it uses less digits than its factorization.

53450709999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26712054.

The product of its (nonzero) digits is 13778100, while the sum is 60.

The spelling of 53450709999 in words is "fifty-three billion, four hundred fifty million, seven hundred nine thousand, nine hundred ninety-nine".