53777667018 has 16 divisors (see below), whose sum is σ = 107700884640. Its totient is φ = 17901630576.

The previous prime is 53777667011. The next prime is 53777667037. The reversal of 53777667018 is 81076677735.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53777667011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6059805 + ... + 6068672.

It is an arithmetic number, because the mean of its divisors is an integer number (6731305290).

Almost surely, 2^53777667018 is an apocalyptic number.

53777667018 is an abundant number, since it is smaller than the sum of its proper divisors (53923217622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53777667018 is a wasteful number, since it uses less digits than its factorization.

53777667018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12129221.

The product of its (nonzero) digits is 10372320, while the sum is 57.

The spelling of 53777667018 in words is "fifty-three billion, seven hundred seventy-seven million, six hundred sixty-seven thousand, eighteen".