19692143140401 has 6 divisors (see below), whose sum is σ = 28444206758370. Its totient is φ = 13128095426928.

The previous prime is 19692143140379. The next prime is 19692143140421. The reversal of 19692143140401 is 10404134129691.

It is a happy number.

19692143140401 is a `hidden beast` number, since 1 + 9 + 6 + 92 + 14 + 3 + 140 + 401 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18028507508001 + 1663635632400 = 4245999^2 + 1289820^2 .

It is not a de Polignac number, because 19692143140401 - 2⁶ = 19692143140337 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19692143140421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1094007952236 + ... + 1094007952253.

It is an arithmetic number, because the mean of its divisors is an integer number (4740701126395).

Almost surely, 2^{19692143140401} is an apocalyptic number.

It is an amenable number.

19692143140401 is a deficient number, since it is larger than the sum of its proper divisors (8752063617969).

19692143140401 is a wasteful number, since it uses less digits than its factorization.

19692143140401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2188015904495 (or 2188015904492 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 19692143140401 in words is "nineteen trillion, six hundred ninety-two billion, one hundred forty-three million, one hundred forty thousand, four hundred one".