1421587442880 has 336 divisors, whose sum is σ = 5478355437984. Its totient is φ = 335312732160.

The previous prime is 1421587442837. The next prime is 1421587442881. The reversal of 1421587442880 is 882447851241.

1421587442880 is a `hidden beast` number, since 1 + 4 + 21 + 58 + 74 + 428 + 80 = 666.

It is not an unprimeable number, because it can be changed into a prime (1421587442881) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 565764 + ... + 1778556.

Almost surely, 2^{1421587442880} is an apocalyptic number.

1421587442880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421587442880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2739177718992).

1421587442880 is an abundant number, since it is smaller than the sum of its proper divisors (4056767995104).

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

1421587442880 is a wasteful number, since it uses less digits than its factorization.

1421587442880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212864 (or 1212851 counting only the distinct ones).

The product of its (nonzero) digits is 4587520, while the sum is 54.

The spelling of 1421587442880 in words is "one trillion, four hundred twenty-one billion, five hundred eighty-seven million, four hundred forty-two thousand, eight hundred eighty".