19468486491 has 16 divisors (see below), whose sum is σ = 26114340000. Its totient is φ = 12900925440.

The previous prime is 19468486481. The next prime is 19468486529.

19468486491 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 19468486491 - 2¹¹ = 19468484443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19468486481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 709711 + ... + 736631.

It is an arithmetic number, because the mean of its divisors is an integer number (1632146250).

Almost surely, 2^19468486491 is an apocalyptic number.

19468486491 is a deficient number, since it is larger than the sum of its proper divisors (6645853509).

19468486491 is a wasteful number, since it uses less digits than its factorization.

19468486491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28366.

The product of its digits is 11943936, while the sum is 60.

The spelling of 19468486491 in words is "nineteen billion, four hundred sixty-eight million, four hundred eighty-six thousand, four hundred ninety-one".