18741350156455 has 4 divisors (see below), whose sum is σ = 22489620187752. Its totient is φ = 14993080125160.

The previous prime is 18741350156443. The next prime is 18741350156461. The reversal of 18741350156455 is 55465105314781.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 18741350156455 - 2¹⁵ = 18741350123687 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18741350156396 and 18741350156405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1874135015641 + ... + 1874135015650.

It is an arithmetic number, because the mean of its divisors is an integer number (5622405046938).

Almost surely, 2^{18741350156455} is an apocalyptic number.

18741350156455 is a deficient number, since it is larger than the sum of its proper divisors (3748270031297).

18741350156455 is an equidigital number, since it uses as much as digits as its factorization.

18741350156455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3748270031296.

The product of its (nonzero) digits is 10080000, while the sum is 55.

The spelling of 18741350156455 in words is "eighteen trillion, seven hundred forty-one billion, three hundred fifty million, one hundred fifty-six thousand, four hundred fifty-five".