1421648886800 has 120 divisors (see below), whose sum is σ = 3447859386120. Its totient is φ = 563280076800.

The previous prime is 1421648886797. The next prime is 1421648886809. The reversal of 1421648886800 is 86888461241.

It can be written as a sum of positive squares in 12 ways, for example, as 610842286096 + 810806600704 = 781564^2 + 900448^2 .

It is not an unprimeable number, because it can be changed into a prime (1421648886809) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80854010 + ... + 80871590.

It is an arithmetic number, because the mean of its divisors is an integer number (28732161551).

Almost surely, 2^{1421648886800} is an apocalyptic number.

1421648886800 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 1421648886800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1723929693060).

1421648886800 is an abundant number, since it is smaller than the sum of its proper divisors (2026210499320).

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

1421648886800 is a wasteful number, since it uses less digits than its factorization.

1421648886800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19501 (or 19490 counting only the distinct ones).

The product of its (nonzero) digits is 4718592, while the sum is 56.

The spelling of 1421648886800 in words is "one trillion, four hundred twenty-one billion, six hundred forty-eight million, eight hundred eighty-six thousand, eight hundred".