1840877997899 has 4 divisors (see below), whose sum is σ = 1841780833680. Its totient is φ = 1839975162120.

The previous prime is 1840877997857. The next prime is 1840877997971. The reversal of 1840877997899 is 9987997780481.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1840877997899 - 2¹² = 1840877993803 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1840877997899.

It is not an unprimeable number, because it can be changed into a prime (1840877997499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451414832 + ... + 451418909.

It is an arithmetic number, because the mean of its divisors is an integer number (460445208420).

Almost surely, 2^{1840877997899} is an apocalyptic number.

1840877997899 is a deficient number, since it is larger than the sum of its proper divisors (902835781).

1840877997899 is an equidigital number, since it uses as much as digits as its factorization.

1840877997899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902835780.

The product of its (nonzero) digits is 4608866304, while the sum is 86.

The spelling of 1840877997899 in words is "one trillion, eight hundred forty billion, eight hundred seventy-seven million, nine hundred ninety-seven thousand, eight hundred ninety-nine".