18288803120474 has 4 divisors (see below), whose sum is σ = 27433204680714. Its totient is φ = 9144401560236.

The previous prime is 18288803120407. The next prime is 18288803120501. The reversal of 18288803120474 is 47402130888281.

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., 16970749876249 + 1318053244225 = 4119557^2 + 1148065^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4572200780117 + ... + 4572200780120.

Almost surely, 2^{18288803120474} is an apocalyptic number.

18288803120474 is a deficient number, since it is larger than the sum of its proper divisors (9144401560240).

18288803120474 is an equidigital number, since it uses as much as digits as its factorization.

18288803120474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9144401560239.

The product of its (nonzero) digits is 5505024, while the sum is 56.

The spelling of 18288803120474 in words is "eighteen trillion, two hundred eighty-eight billion, eight hundred three million, one hundred twenty thousand, four hundred seventy-four".