18462413897 has 4 divisors (see below), whose sum is σ = 18498686340. Its totient is φ = 18426141456.

The previous prime is 18462413891. The next prime is 18462413951. The reversal of 18462413897 is 79831426481.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79831426481 = 48953 ⋅1630777.

It can be written as a sum of positive squares in 2 ways, for example, as 12242094736 + 6220319161 = 110644^2 + 78869^2 .

It is a cyclic number.

It is not a de Polignac number, because 18462413897 - 2⁶ = 18462413833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18462413891) 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 3 ways as a sum of consecutive naturals, for example, 18135458 + ... + 18136475.

It is an arithmetic number, because the mean of its divisors is an integer number (4624671585).

Almost surely, 2^18462413897 is an apocalyptic number.

It is an amenable number.

18462413897 is a deficient number, since it is larger than the sum of its proper divisors (36272443).

18462413897 is an equidigital number, since it uses as much as digits as its factorization.

18462413897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36272442.

The product of its digits is 2322432, while the sum is 53.

The spelling of 18462413897 in words is "eighteen billion, four hundred sixty-two million, four hundred thirteen thousand, eight hundred ninety-seven".