4642120636450 has 48 divisors (see below), whose sum is σ = 9548316163296. Its totient is φ = 1664919964800.

The previous prime is 4642120636441. The next prime is 4642120636463. The reversal of 4642120636450 is 546360212464.

It is a junction number, because it is equal to n+sod(n) for n = 4642120636397 and 4642120636406.

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, 57769572 + ... + 57849871.

It is an arithmetic number, because the mean of its divisors is an integer number (198923253402).

Almost surely, 2^{4642120636450} is an apocalyptic number.

4642120636450 is an abundant number, since it is smaller than the sum of its proper divisors (4906195526846).

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

4642120636450 is a wasteful number, since it uses less digits than its factorization.

4642120636450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115619539 (or 115619534 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 43.

The spelling of 4642120636450 in words is "four trillion, six hundred forty-two billion, one hundred twenty million, six hundred thirty-six thousand, four hundred fifty".