1421969198832 has 540 divisors, whose sum is σ = 5021933435064. Its totient is φ = 374338298880.

The previous prime is 1421969198809. The next prime is 1421969198843. The reversal of 1421969198832 is 2388919691241.

1421969198832 is a `hidden beast` number, since 1 + 421 + 9 + 6 + 91 + 98 + 8 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

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

It is a self number, because there is not a number n which added to its sum of digits gives 1421969198832.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 1300977678 + ... + 1300978770.

Almost surely, 2^{1421969198832} is an apocalyptic number.

1421969198832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is a pronic number, being equal to 1192463×1192464.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421969198832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2510966717532).

1421969198832 is an abundant number, since it is smaller than the sum of its proper divisors (3599964236232).

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

1421969198832 is a wasteful number, since it uses less digits than its factorization.

1421969198832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238 (or 2209 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 63.

The spelling of 1421969198832 in words is "one trillion, four hundred twenty-one billion, nine hundred sixty-nine million, one hundred ninety-eight thousand, eight hundred thirty-two".