53927397861 has 4 divisors (see below), whose sum is σ = 71903197152. Its totient is φ = 35951598572.

The previous prime is 53927397859. The next prime is 53927397893. The reversal of 53927397861 is 16879372935.

53927397861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53927397861 - 2¹ = 53927397859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53927397795 and 53927397804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53927397361) 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, 8987899641 + ... + 8987899646.

It is an arithmetic number, because the mean of its divisors is an integer number (17975799288).

Almost surely, 2^53927397861 is an apocalyptic number.

It is an amenable number.

53927397861 is a deficient number, since it is larger than the sum of its proper divisors (17975799291).

53927397861 is a wasteful number, since it uses less digits than its factorization.

53927397861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17975799290.

The product of its digits is 17146080, while the sum is 60.

The spelling of 53927397861 in words is "fifty-three billion, nine hundred twenty-seven million, three hundred ninety-seven thousand, eight hundred sixty-one".