19145967401 has 8 divisors (see below), whose sum is σ = 20893205664. Its totient is φ = 17399845120.

The previous prime is 19145967391. The next prime is 19145967403. The reversal of 19145967401 is 10476954191.

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 19145967401 - 2¹⁰ = 19145966377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19145967403) 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, 242915 + ... + 311928.

It is an arithmetic number, because the mean of its divisors is an integer number (2611650708).

Almost surely, 2^19145967401 is an apocalyptic number.

19145967401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

19145967401 is a deficient number, since it is larger than the sum of its proper divisors (1747238263).

19145967401 is a wasteful number, since it uses less digits than its factorization.

19145967401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557991.

The product of its (nonzero) digits is 272160, while the sum is 47.

The spelling of 19145967401 in words is "nineteen billion, one hundred forty-five million, nine hundred sixty-seven thousand, four hundred one".