4542121622436 has 24 divisors (see below), whose sum is σ = 10608684485280. Its totient is φ = 1512554726592.

The previous prime is 4542121622393. The next prime is 4542121622477. The reversal of 4542121622436 is 6342261212454.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185714041 + ... + 185738496.

It is an arithmetic number, because the mean of its divisors is an integer number (442028520220).

Almost surely, 2^{4542121622436} is an apocalyptic number.

It is an amenable number.

4542121622436 is an abundant number, since it is smaller than the sum of its proper divisors (6066562862844).

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

4542121622436 is a wasteful number, since it uses less digits than its factorization.

4542121622436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371453563 (or 371453561 counting only the distinct ones).

The product of its digits is 552960, while the sum is 42.

The spelling of 4542121622436 in words is "four trillion, five hundred forty-two billion, one hundred twenty-one million, six hundred twenty-two thousand, four hundred thirty-six".