1804864712026 has 4 divisors (see below), whose sum is σ = 2707297068042. Its totient is φ = 902432356012.

The previous prime is 1804864712023. The next prime is 1804864712047. The reversal of 1804864712026 is 6202174684081.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 1352068956225 + 452795755801 = 1162785^2 + 672901^2 .

It is not an unprimeable number, because it can be changed into a prime (1804864712023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 451216178005 + ... + 451216178008.

Almost surely, 2^{1804864712026} is an apocalyptic number.

1804864712026 is a deficient number, since it is larger than the sum of its proper divisors (902432356016).

1804864712026 is an equidigital number, since it uses as much as digits as its factorization.

1804864712026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902432356015.

The product of its (nonzero) digits is 1032192, while the sum is 49.

The spelling of 1804864712026 in words is "one trillion, eight hundred four billion, eight hundred sixty-four million, seven hundred twelve thousand, twenty-six".