19253482118642 has 8 divisors (see below), whose sum is σ = 29047160884716. Its totient is φ = 9571095157072.

The previous prime is 19253482118581. The next prime is 19253482118653. The reversal of 19253482118642 is 24681128435291.

It is a happy number.

It is a Cunningham number, because it is equal to 4387879²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 19253482118641 + 1 = 4387879^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 27822950693 + ... + 27822951384.

Almost surely, 2^{19253482118642} is an apocalyptic number.

19253482118642 is a deficient number, since it is larger than the sum of its proper divisors (9793678766074).

19253482118642 is a wasteful number, since it uses less digits than its factorization.

19253482118642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55645902252.

The product of its digits is 6635520, while the sum is 56.

The spelling of 19253482118642 in words is "nineteen trillion, two hundred fifty-three billion, four hundred eighty-two million, one hundred eighteen thousand, six hundred forty-two".