422121617536540 has 48 divisors (see below), whose sum is σ = 901714164140160. Its totient is φ = 165943701492800.

The previous prime is 422121617536513. The next prime is 422121617536547. The reversal of 422121617536540 is 45635716121224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422121617536547) 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, 41902222 + ... + 50990581.

It is an arithmetic number, because the mean of its divisors is an integer number (18785711752920).

Almost surely, 2^{422121617536540} is an apocalyptic number.

It is an amenable number.

422121617536540 is an abundant number, since it is smaller than the sum of its proper divisors (479592546603620).

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

422121617536540 is a wasteful number, since it uses less digits than its factorization.

422121617536540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92896722 (or 92896720 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 422121617536540 in words is "four hundred twenty-two trillion, one hundred twenty-one billion, six hundred seventeen million, five hundred thirty-six thousand, five hundred forty".