53653480818 has 16 divisors (see below), whose sum is σ = 122636527680. Its totient is φ = 15329565936.

The previous prime is 53653480813. The next prime is 53653480913. The reversal of 53653480818 is 81808435635.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (53653480813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 638731873 + ... + 638731956.

It is an arithmetic number, because the mean of its divisors is an integer number (7664782980).

Almost surely, 2^53653480818 is an apocalyptic number.

53653480818 is an abundant number, since it is smaller than the sum of its proper divisors (68983046862).

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

53653480818 is a wasteful number, since it uses less digits than its factorization.

53653480818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277463841.

The product of its (nonzero) digits is 2764800, while the sum is 51.

The spelling of 53653480818 in words is "fifty-three billion, six hundred fifty-three million, four hundred eighty thousand, eight hundred eighteen".