53777629945 has 8 divisors (see below), whose sum is σ = 69497244936. Its totient is φ = 39712711296.

The previous prime is 53777629901. The next prime is 53777629981. The reversal of 53777629945 is 54992677735.

It can be written as a sum of positive squares in 4 ways, for example, as 1777212649 + 52000417296 = 42157^2 + 228036^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 53777629945 - 2¹³ = 53777621753 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413674012 + ... + 413674141.

It is an arithmetic number, because the mean of its divisors is an integer number (8687155617).

Almost surely, 2^53777629945 is an apocalyptic number.

It is an amenable number.

53777629945 is a deficient number, since it is larger than the sum of its proper divisors (15719614991).

53777629945 is a wasteful number, since it uses less digits than its factorization.

53777629945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827348171.

The product of its digits is 100018800, while the sum is 64.

The spelling of 53777629945 in words is "fifty-three billion, seven hundred seventy-seven million, six hundred twenty-nine thousand, nine hundred forty-five".