1194887421000 has 1536 divisors, whose sum is σ = 5228307302400. Its totient is φ = 239227084800.

The previous prime is 1194887420983. The next prime is 1194887421019. The reversal of 1194887421000 is 1247884911.

1194887421000 is a `hidden beast` number, since 119 + 488 + 7 + 42 + 10 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 4313672862 + ... + 4313673138.

It is an arithmetic number, because the mean of its divisors is an integer number (3403845900).

Almost surely, 2^{1194887421000} is an apocalyptic number.

1194887421000 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 1194887421000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2614153651200).

1194887421000 is an abundant number, since it is smaller than the sum of its proper divisors (4033419881400).

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

1194887421000 is a wasteful number, since it uses less digits than its factorization.

1194887421000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The spelling of 1194887421000 in words is "one trillion, one hundred ninety-four billion, eight hundred eighty-seven million, four hundred twenty-one thousand".