1835044816649 has 4 divisors (see below), whose sum is σ = 2001867072720. Its totient is φ = 1668222560580.

The previous prime is 1835044816643. The next prime is 1835044816651. The reversal of 1835044816649 is 9466184405381.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1835044816649 - 2³⁶ = 1766325339913 is a prime.

It is a super-2 number, since 2×1835044816649² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1835044816643) 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, 83411128019 + ... + 83411128040.

It is an arithmetic number, because the mean of its divisors is an integer number (500466768180).

Almost surely, 2^{1835044816649} is an apocalyptic number.

It is an amenable number.

1835044816649 is a deficient number, since it is larger than the sum of its proper divisors (166822256071).

1835044816649 is a wasteful number, since it uses less digits than its factorization.

1835044816649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166822256070.

The product of its (nonzero) digits is 19906560, while the sum is 59.

The spelling of 1835044816649 in words is "one trillion, eight hundred thirty-five billion, forty-four million, eight hundred sixteen thousand, six hundred forty-nine".