53436721327 has 16 divisors (see below), whose sum is σ = 60319572480. Its totient is φ = 46892188000.

The previous prime is 53436721321. The next prime is 53436721337. The reversal of 53436721327 is 72312763435.

53436721327 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53436721327 - 2⁷ = 53436721199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53436721321) 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, 1443702 + ... + 1480252.

It is an arithmetic number, because the mean of its divisors is an integer number (3769973280).

Almost surely, 2^53436721327 is an apocalyptic number.

53436721327 is a deficient number, since it is larger than the sum of its proper divisors (6882851153).

53436721327 is a wasteful number, since it uses less digits than its factorization.

53436721327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41174.

The product of its digits is 635040, while the sum is 43.

The spelling of 53436721327 in words is "fifty-three billion, four hundred thirty-six million, seven hundred twenty-one thousand, three hundred twenty-seven".