1794497379840 has 960 divisors, whose sum is σ = 7072899305472. Its totient is φ = 432436838400.

The previous prime is 1794497379713. The next prime is 1794497379847. The reversal of 1794497379840 is 489737944971.

1794497379840 is a `hidden beast` number, since 1 + 7 + 9 + 4 + 497 + 3 + 7 + 98 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1794497379847) 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, 1306989394 + ... + 1306990766.

Almost surely, 2^{1794497379840} is an apocalyptic number.

1794497379840 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 1794497379840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3536449652736).

1794497379840 is an abundant number, since it is smaller than the sum of its proper divisors (5278401925632).

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

1794497379840 is a wasteful number, since it uses less digits than its factorization.

1794497379840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613 (or 1585 counting only the distinct ones).

The product of its (nonzero) digits is 384072192, while the sum is 72.

The spelling of 1794497379840 in words is "one trillion, seven hundred ninety-four billion, four hundred ninety-seven million, three hundred seventy-nine thousand, eight hundred forty".