1636675423043 has 4 divisors (see below), whose sum is σ = 1636845512208. Its totient is φ = 1636505333880.

The previous prime is 1636675423001. The next prime is 1636675423051. The reversal of 1636675423043 is 3403245766361.

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 1636675423043 - 2²⁴ = 1636658645827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1636675422982 and 1636675423000.

It is not an unprimeable number, because it can be changed into a prime (1636675423093) 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, 85030148 + ... + 85049393.

It is an arithmetic number, because the mean of its divisors is an integer number (409211378052).

Almost surely, 2^{1636675423043} is an apocalyptic number.

1636675423043 is a deficient number, since it is larger than the sum of its proper divisors (170089165).

1636675423043 is an equidigital number, since it uses as much as digits as its factorization.

1636675423043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170089164.

The product of its (nonzero) digits is 6531840, while the sum is 50.

The spelling of 1636675423043 in words is "one trillion, six hundred thirty-six billion, six hundred seventy-five million, four hundred twenty-three thousand, forty-three".