4542121622438 has 8 divisors (see below), whose sum is σ = 6909142749840. Its totient is φ = 2239074039160.

The previous prime is 4542121622393. The next prime is 4542121622477. The reversal of 4542121622438 is 8342261212454.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15993385853 + ... + 15993386136.

It is an arithmetic number, because the mean of its divisors is an integer number (863642843730).

Almost surely, 2^{4542121622438} is an apocalyptic number.

4542121622438 is a deficient number, since it is larger than the sum of its proper divisors (2367021127402).

4542121622438 is a wasteful number, since it uses less digits than its factorization.

4542121622438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31986772062.

The product of its digits is 737280, while the sum is 44.

The spelling of 4542121622438 in words is "four trillion, five hundred forty-two billion, one hundred twenty-one million, six hundred twenty-two thousand, four hundred thirty-eight".