53168312780 has 48 divisors (see below), whose sum is σ = 122121990144. Its totient is φ = 19283421120.

The previous prime is 53168312767. The next prime is 53168312783. The reversal of 53168312780 is 8721386135.

It is a happy number.

It is a super-2 number, since 2×53168312780² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (53168312783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231242 + ... + 399761.

It is an arithmetic number, because the mean of its divisors is an integer number (2544208128).

Almost surely, 2^53168312780 is an apocalyptic number.

It is an amenable number.

53168312780 is an abundant number, since it is smaller than the sum of its proper divisors (68953677364).

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

53168312780 is a wasteful number, since it uses less digits than its factorization.

53168312780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631406 (or 631404 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 53168312780 in words is "fifty-three billion, one hundred sixty-eight million, three hundred twelve thousand, seven hundred eighty".