42821222448 has 20 divisors (see below), whose sum is σ = 110621491448. Its totient is φ = 14273740800.

The previous prime is 42821222401. The next prime is 42821222471. The reversal of 42821222448 is 84422212824.

It is a super-2 number, since 2×42821222448² (a number of 22 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

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, 446054353 + ... + 446054448.

Almost surely, 2^42821222448 is an apocalyptic number.

42821222448 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

42821222448 is an abundant number, since it is smaller than the sum of its proper divisors (67800269000).

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

42821222448 is a wasteful number, since it uses less digits than its factorization.

42821222448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892108812 (or 892108806 counting only the distinct ones).

The product of its digits is 131072, while the sum is 39.

The spelling of 42821222448 in words is "forty-two billion, eight hundred twenty-one million, two hundred twenty-two thousand, four hundred forty-eight".