51822262143840 has 48 divisors (see below), whose sum is σ = 163240125754608. Its totient is φ = 13819269904896.

The previous prime is 51822262143781. The next prime is 51822262143893. The reversal of 51822262143840 is 4834126222815.

51822262143840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×51822262143840³ (a number of 42 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 51822262143840.

It is a congruent number.

It is an unprimeable number.

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, 53981522587 + ... + 53981523546.

It is an arithmetic number, because the mean of its divisors is an integer number (3400835953221).

Almost surely, 2^{51822262143840} is an apocalyptic number.

It is an amenable number.

51822262143840 is an abundant number, since it is smaller than the sum of its proper divisors (111417863610768).

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

51822262143840 is a wasteful number, since it uses less digits than its factorization.

51822262143840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107963046151 (or 107963046143 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 48.

The spelling of 51822262143840 in words is "fifty-one trillion, eight hundred twenty-two billion, two hundred sixty-two million, one hundred forty-three thousand, eight hundred forty".