53964404369 has 4 divisors (see below), whose sum is σ = 54011208996. Its totient is φ = 53917599744.

The previous prime is 53964404317. The next prime is 53964404437. The reversal of 53964404369 is 96340446935.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26784595600 + 27179808769 = 163660^2 + 164863^2 .

It is a cyclic number.

It is not a de Polignac number, because 53964404369 - 2⁸ = 53964404113 is a prime.

It is a super-2 number, since 2×53964404369² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53964404369.

It is not an unprimeable number, because it can be changed into a prime (53964404309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23400584 + ... + 23402889.

It is an arithmetic number, because the mean of its divisors is an integer number (13502802249).

Almost surely, 2^53964404369 is an apocalyptic number.

It is an amenable number.

53964404369 is a deficient number, since it is larger than the sum of its proper divisors (46804627).

53964404369 is a wasteful number, since it uses less digits than its factorization.

53964404369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46804626.

The product of its (nonzero) digits is 8398080, while the sum is 53.

The spelling of 53964404369 in words is "fifty-three billion, nine hundred sixty-four million, four hundred four thousand, three hundred sixty-nine".