1481458323218 has 4 divisors (see below), whose sum is σ = 2222187484830. Its totient is φ = 740729161608.

The previous prime is 1481458323197. The next prime is 1481458323229. The reversal of 1481458323218 is 8123238541841.

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., 798526321609 + 682932001609 = 893603^2 + 826397^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370364580803 + ... + 370364580806.

Almost surely, 2^{1481458323218} is an apocalyptic number.

1481458323218 is a deficient number, since it is larger than the sum of its proper divisors (740729161612).

1481458323218 is an equidigital number, since it uses as much as digits as its factorization.

1481458323218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740729161611.

The product of its digits is 1474560, while the sum is 50.

The spelling of 1481458323218 in words is "one trillion, four hundred eighty-one billion, four hundred fifty-eight million, three hundred twenty-three thousand, two hundred eighteen".