19422080888401 has 27 divisors (see below), whose sum is σ = 20348814100827. Its totient is φ = 18537105785760.

The previous prime is 19422080888389. The next prime is 19422080888407. The reversal of 19422080888401 is 10488808022491.

It is a happy number.

The square root of 19422080888401 is 4407049.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 935864694801 + 18486216193600 = 967401^2 + 4299560^2 .

It is not a de Polignac number, because 19422080888401 - 2¹⁷ = 19422080757329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19422080888407) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 8492382280 + ... + 8492384566.

Almost surely, 2^{19422080888401} is an apocalyptic number.

19422080888401 is the 4407049-th square number.

19422080888401 is the 2203525-th centered octagonal number.

It is an amenable number.

19422080888401 is a deficient number, since it is larger than the sum of its proper divisors (926733212426).

19422080888401 is an frugal number, since it uses more digits than its factorization.

19422080888401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4750 (or 2375 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 55.

The spelling of 19422080888401 in words is "nineteen trillion, four hundred twenty-two billion, eighty million, eight hundred eighty-eight thousand, four hundred one".