1869225704640 has 252 divisors, whose sum is σ = 7479049178016. Its totient is φ = 427251557376.

The previous prime is 1869225704573. The next prime is 1869225704641. The reversal of 1869225704640 is 464075229681.

1869225704640 is a `hidden beast` number, since 1 + 8 + 6 + 9 + 2 + 2 + 570 + 4 + 64 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (252).

It is not an unprimeable number, because it can be changed into a prime (1869225704641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6481704 + ... + 6763943.

Almost surely, 2^{1869225704640} is an apocalyptic number.

1869225704640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1869225704640 is an abundant number, since it is smaller than the sum of its proper divisors (5609823473376).

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

1869225704640 is a wasteful number, since it uses less digits than its factorization.

1869225704640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13245684 (or 13245664 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 1869225704640 in words is "one trillion, eight hundred sixty-nine billion, two hundred twenty-five million, seven hundred four thousand, six hundred forty".