53668549837 has 4 divisors (see below), whose sum is σ = 61335485536. Its totient is φ = 46001614140.

The previous prime is 53668549817. The next prime is 53668549849. The reversal of 53668549837 is 73894586635.

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 a de Polignac number, because none of the positive numbers 2^k-53668549837 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 (53668549817) 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, 3833467839 + ... + 3833467852.

It is an arithmetic number, because the mean of its divisors is an integer number (15333871384).

Almost surely, 2^53668549837 is an apocalyptic number.

It is an amenable number.

53668549837 is a deficient number, since it is larger than the sum of its proper divisors (7666935699).

53668549837 is an equidigital number, since it uses as much as digits as its factorization.

53668549837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7666935698.

The product of its digits is 130636800, while the sum is 64.

The spelling of 53668549837 in words is "fifty-three billion, six hundred sixty-eight million, five hundred forty-nine thousand, eight hundred thirty-seven".