19193242501 has 2 divisors, whose sum is σ = 19193242502. Its totient is φ = 19193242500.

The previous prime is 19193242451. The next prime is 19193242507. The reversal of 19193242501 is 10524239191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15340061025 + 3853181476 = 123855^2 + 62074^2 .

It is a cyclic number.

It is not a de Polignac number, because 19193242501 - 2²¹ = 19191145349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19193242507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9596621250 + 9596621251.

It is an arithmetic number, because the mean of its divisors is an integer number (9596621251).

Almost surely, 2^19193242501 is an apocalyptic number.

It is an amenable number.

19193242501 is a deficient number, since it is larger than the sum of its proper divisors (1).

19193242501 is an equidigital number, since it uses as much as digits as its factorization.

19193242501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 19193242501 in words is "nineteen billion, one hundred ninety-three million, two hundred forty-two thousand, five hundred one".