19467794401 has 4 divisors (see below), whose sum is σ = 21237593904. Its totient is φ = 17697994900.

The previous prime is 19467794369. The next prime is 19467794413. The reversal of 19467794401 is 10449776491.

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 19467794401 - 2⁵ = 19467794369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19467794491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 884899735 + ... + 884899756.

It is an arithmetic number, because the mean of its divisors is an integer number (5309398476).

Almost surely, 2^19467794401 is an apocalyptic number.

19467794401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

19467794401 is a deficient number, since it is larger than the sum of its proper divisors (1769799503).

19467794401 is a wasteful number, since it uses less digits than its factorization.

19467794401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769799502.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The spelling of 19467794401 in words is "nineteen billion, four hundred sixty-seven million, seven hundred ninety-four thousand, four hundred one".