53128804461 has 16 divisors (see below), whose sum is σ = 71410305024. Its totient is φ = 35133364224.

The previous prime is 53128804453. The next prime is 53128804471. The reversal of 53128804461 is 16440882135.

It is a happy number.

It is not a de Polignac number, because 53128804461 - 2³ = 53128804453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53128804471) 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, 2531965 + ... + 2552861.

It is an arithmetic number, because the mean of its divisors is an integer number (4463144064).

Almost surely, 2^53128804461 is an apocalyptic number.

It is an amenable number.

53128804461 is a deficient number, since it is larger than the sum of its proper divisors (18281500563).

53128804461 is a wasteful number, since it uses less digits than its factorization.

53128804461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27700.

The product of its (nonzero) digits is 184320, while the sum is 42.

The spelling of 53128804461 in words is "fifty-three billion, one hundred twenty-eight million, eight hundred four thousand, four hundred sixty-one".