19835007229801 has 15 divisors (see below), whose sum is σ = 20739058609341. Its totient is φ = 18970362063708.

The previous prime is 19835007229783. The next prime is 19835007229823. The reversal of 19835007229801 is 10892270053891.

It is a happy number.

The square root of 19835007229801 is 4453651.

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

It is not a de Polignac number, because 19835007229801 - 2⁵ = 19835007229769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19835007229831) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 2355977170 + ... + 2355985588.

Almost surely, 2^{19835007229801} is an apocalyptic number.

19835007229801 is the 4453651-st square number.

19835007229801 is the 2226826-th centered octagonal number.

It is an amenable number.

19835007229801 is a deficient number, since it is larger than the sum of its proper divisors (904051379540).

19835007229801 is an frugal number, since it uses more digits than its factorization.

19835007229801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16930 (or 8442 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 55.

The spelling of 19835007229801 in words is "nineteen trillion, eight hundred thirty-five billion, seven million, two hundred twenty-nine thousand, eight hundred one".