4643222661840 has 120 divisors (see below), whose sum is σ = 16744029518880. Its totient is φ = 1061308034304.

The previous prime is 4643222661839. The next prime is 4643222661877. The reversal of 4643222661840 is 481662223464.

It is a tau number, because it is divible by the number of its divisors (120).

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 4643222661840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 197404170 + ... + 197427689.

It is an arithmetic number, because the mean of its divisors is an integer number (139533579324).

Almost surely, 2^{4643222661840} is an apocalyptic number.

4643222661840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4643222661840 is an abundant number, since it is smaller than the sum of its proper divisors (12100806857040).

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

4643222661840 is a wasteful number, since it uses less digits than its factorization.

4643222661840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394831889 (or 394831876 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 48.

The spelling of 4643222661840 in words is "four trillion, six hundred forty-three billion, two hundred twenty-two million, six hundred sixty-one thousand, eight hundred forty".