18726402341 has 4 divisors (see below), whose sum is σ = 18861124800. Its totient is φ = 18591679884.

The previous prime is 18726402323. The next prime is 18726402427. The reversal of 18726402341 is 14320462781.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18726402341 - 2¹⁴ = 18726385957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18726402295 and 18726402304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18726402301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67361021 + ... + 67361298.

It is an arithmetic number, because the mean of its divisors is an integer number (4715281200).

Almost surely, 2^18726402341 is an apocalyptic number.

It is an amenable number.

18726402341 is a deficient number, since it is larger than the sum of its proper divisors (134722459).

18726402341 is a wasteful number, since it uses less digits than its factorization.

18726402341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134722458.

The product of its (nonzero) digits is 64512, while the sum is 38.

The spelling of 18726402341 in words is "eighteen billion, seven hundred twenty-six million, four hundred two thousand, three hundred forty-one".