19424711742491 has 8 divisors (see below), whose sum is σ = 21273048306864. Its totient is φ = 17590117457920.

The previous prime is 19424711742467. The next prime is 19424711742521.

19424711742491 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 19424711742491 - 2⁴² = 15026665231387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19424711742451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3435566990 + ... + 3435572643.

It is an arithmetic number, because the mean of its divisors is an integer number (2659131038358).

Almost surely, 2^{19424711742491} is an apocalyptic number.

19424711742491 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

19424711742491 is a deficient number, since it is larger than the sum of its proper divisors (1848336564373).

19424711742491 is a wasteful number, since it uses less digits than its factorization.

19424711742491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6871139901.

The product of its digits is 4064256, while the sum is 56.

The spelling of 19424711742491 in words is "nineteen trillion, four hundred twenty-four billion, seven hundred eleven million, seven hundred forty-two thousand, four hundred ninety-one".