18596004649 has 8 divisors (see below), whose sum is σ = 19053858600. Its totient is φ = 18138355200.

The previous prime is 18596004641. The next prime is 18596004683. The reversal of 18596004649 is 94640069581.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 406627225 + 18189377424 = 20165^2 + 134868^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 18596004649 - 2³ = 18596004641 is a prime.

It is a super-2 number, since 2×18596004649² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18596004596 and 18596004605.

It is not an unprimeable number, because it can be changed into a prime (18596004641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141829 + ... + 239389.

It is an arithmetic number, because the mean of its divisors is an integer number (2381732325).

Almost surely, 2^18596004649 is an apocalyptic number.

It is an amenable number.

18596004649 is a deficient number, since it is larger than the sum of its proper divisors (457853951).

18596004649 is an equidigital number, since it uses as much as digits as its factorization.

18596004649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102251.

The product of its (nonzero) digits is 1866240, while the sum is 52.

It can be divided in two parts, 1859600 and 4649, that multiplied together give a square (8645280400 = 92980²).

The spelling of 18596004649 in words is "eighteen billion, five hundred ninety-six million, four thousand, six hundred forty-nine".