4643222661838 has 32 divisors (see below), whose sum is σ = 7619194425024. Its totient is φ = 2113260083712.

The previous prime is 4643222661823. The next prime is 4643222661839. The reversal of 4643222661838 is 8381662223464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4643222661839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10840681 + ... + 11260852.

It is an arithmetic number, because the mean of its divisors is an integer number (238099825782).

Almost surely, 2^{4643222661838} is an apocalyptic number.

4643222661838 is a deficient number, since it is larger than the sum of its proper divisors (2975971763186).

4643222661838 is a wasteful number, since it uses less digits than its factorization.

4643222661838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22101756.

The product of its digits is 15925248, while the sum is 55.

The spelling of 4643222661838 in words is "four trillion, six hundred forty-three billion, two hundred twenty-two million, six hundred sixty-one thousand, eight hundred thirty-eight".