1798772840640 has 112 divisors (see below), whose sum is σ = 6345670884960. Its totient is φ = 479672755200.

The previous prime is 1798772840603. The next prime is 1798772840671. The reversal of 1798772840640 is 460482778971.

1798772840640 is a `hidden beast` number, since 17 + 98 + 77 + 28 + 406 + 40 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104087011 + ... + 104104290.

Almost surely, 2^{1798772840640} is an apocalyptic number.

1798772840640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1798772840640 is an abundant number, since it is smaller than the sum of its proper divisors (4546898044320).

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

1798772840640 is a wasteful number, since it uses less digits than its factorization.

1798772840640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208191327 (or 208191311 counting only the distinct ones).

The product of its (nonzero) digits is 37933056, while the sum is 63.

The spelling of 1798772840640 in words is "one trillion, seven hundred ninety-eight billion, seven hundred seventy-two million, eight hundred forty thousand, six hundred forty".