1801640888299 has 8 divisors (see below), whose sum is σ = 2068776539648. Its totient is φ = 1536944832360.

The previous prime is 1801640888291. The next prime is 1801640888339. The reversal of 1801640888299 is 9928880461081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1801640888299 - 2³ = 1801640888291 is a prime.

It is a super-2 number, since 2×1801640888299² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1801640888299.

It is not an unprimeable number, because it can be changed into a prime (1801640888291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 609897267 + ... + 609900220.

It is an arithmetic number, because the mean of its divisors is an integer number (258597067456).

Almost surely, 2^{1801640888299} is an apocalyptic number.

1801640888299 is a deficient number, since it is larger than the sum of its proper divisors (267135651349).

1801640888299 is a wasteful number, since it uses less digits than its factorization.

1801640888299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219797705.

The product of its (nonzero) digits is 15925248, while the sum is 64.

The spelling of 1801640888299 in words is "one trillion, eight hundred one billion, six hundred forty million, eight hundred eighty-eight thousand, two hundred ninety-nine".