19835514045 has 12 divisors (see below), whose sum is σ = 34381557756. Its totient is φ = 10578940800.

The previous prime is 19835514043. The next prime is 19835514059. The reversal of 19835514045 is 54041553891.

It is a happy number.

19835514045 is a `hidden beast` number, since 1 + 98 + 3 + 5 + 514 + 0 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8270447364 + 11565066681 = 90942^2 + 107541^2 .

It is not a de Polignac number, because 19835514045 - 2¹ = 19835514043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 440789201 = 19835514045 / (1 + 9 + 8 + 3 + 5 + 5 + 1 + 4 + 0 + 4 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19835514043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 220394556 + ... + 220394645.

It is an arithmetic number, because the mean of its divisors is an integer number (2865129813).

Almost surely, 2^19835514045 is an apocalyptic number.

19835514045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19835514045 is a deficient number, since it is larger than the sum of its proper divisors (14546043711).

19835514045 is a wasteful number, since it uses less digits than its factorization.

19835514045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440789212 (or 440789209 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 45.

The spelling of 19835514045 in words is "nineteen billion, eight hundred thirty-five million, five hundred fourteen thousand, forty-five".