1421956683189 has 96 divisors (see below), whose sum is σ = 2493391380480. Its totient is φ = 762804418176.

The previous prime is 1421956683187. The next prime is 1421956683197. The reversal of 1421956683189 is 9813866591241.

1421956683189 is a `hidden beast` number, since 1 + 42 + 19 + 566 + 8 + 3 + 18 + 9 = 666.

It is not a de Polignac number, because 1421956683189 - 2¹ = 1421956683187 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421956683187) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 63562684 + ... + 63585050.

It is an arithmetic number, because the mean of its divisors is an integer number (25972826880).

Almost surely, 2^{1421956683189} is an apocalyptic number.

1421956683189 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1421956683189 is a deficient number, since it is larger than the sum of its proper divisors (1071434697291).

1421956683189 is a wasteful number, since it uses less digits than its factorization.

1421956683189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22879 (or 22876 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 63.

The spelling of 1421956683189 in words is "one trillion, four hundred twenty-one billion, nine hundred fifty-six million, six hundred eighty-three thousand, one hundred eighty-nine".