51424384164 has 24 divisors (see below), whose sum is σ = 120116961888. Its totient is φ = 17123356800.

The previous prime is 51424384163. The next prime is 51424384199. The reversal of 51424384164 is 46148342415.

51424384164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51424384163) 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, 2251237 + ... + 2273964.

It is an arithmetic number, because the mean of its divisors is an integer number (5004873412).

Almost surely, 2^51424384164 is an apocalyptic number.

It is an amenable number.

51424384164 is an abundant number, since it is smaller than the sum of its proper divisors (68692577724).

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

51424384164 is a wasteful number, since it uses less digits than its factorization.

51424384164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4526155 (or 4526153 counting only the distinct ones).

The product of its digits is 368640, while the sum is 42.

The spelling of 51424384164 in words is "fifty-one billion, four hundred twenty-four million, three hundred eighty-four thousand, one hundred sixty-four".