19835101513 has 2 divisors, whose sum is σ = 19835101514. Its totient is φ = 19835101512.

The previous prime is 19835101463. The next prime is 19835101607. The reversal of 19835101513 is 31510153891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16602837904 + 3232263609 = 128852^2 + 56853^2 .

It is a cyclic number.

It is not a de Polignac number, because 19835101513 - 2²¹ = 19833004361 is a prime.

It is not a weakly prime, because it can be changed into another prime (19835101613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9917550756 + 9917550757.

It is an arithmetic number, because the mean of its divisors is an integer number (9917550757).

Almost surely, 2^19835101513 is an apocalyptic number.

It is an amenable number.

19835101513 is a deficient number, since it is larger than the sum of its proper divisors (1).

19835101513 is an equidigital number, since it uses as much as digits as its factorization.

19835101513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 37.

The spelling of 19835101513 in words is "nineteen billion, eight hundred thirty-five million, one hundred one thousand, five hundred thirteen".