53146450629 has 18 divisors (see below), whose sum is σ = 78033503366. Its totient is φ = 34846589520.

The previous prime is 53146450601. The next prime is 53146450633. The reversal of 53146450629 is 92605464135.

53146450629 is a `hidden beast` number, since 5 + 3 + 14 + 6 + 4 + 5 + 0 + 629 = 666.

It can be written as a sum of positive squares in only one way, i.e., 31365118404 + 21781332225 = 177102^2 + 147585^2 .

It is not a de Polignac number, because 53146450629 - 2¹² = 53146446533 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53146450529) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5396692 + ... + 5406530.

Almost surely, 2^53146450629 is an apocalyptic number.

It is an amenable number.

53146450629 is a deficient number, since it is larger than the sum of its proper divisors (24887052737).

53146450629 is an frugal number, since it uses more digits than its factorization.

53146450629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19745 (or 9903 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 53146450629 in words is "fifty-three billion, one hundred forty-six million, four hundred fifty thousand, six hundred twenty-nine".