1194145873920 has 608 divisors, whose sum is σ = 4354685879040. Its totient is φ = 310294609920.

The previous prime is 1194145873919. The next prime is 1194145873951. The reversal of 1194145873920 is 293785414911.

1194145873920 is a `hidden beast` number, since 1 + 1 + 9 + 4 + 1 + 4 + 587 + 39 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1450966629 + ... + 1450967451.

Almost surely, 2^{1194145873920} is an apocalyptic number.

1194145873920 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 1194145873920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2177342939520).

1194145873920 is an abundant number, since it is smaller than the sum of its proper divisors (3160540005120).

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

1194145873920 is an frugal number, since it uses more digits than its factorization.

1194145873920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914 (or 874 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 1194145873920 in words is "one trillion, one hundred ninety-four billion, one hundred forty-five million, eight hundred seventy-three thousand, nine hundred twenty".