19193242502 has 64 divisors (see below), whose sum is σ = 35372359680. Its totient is φ = 7628186016.

The previous prime is 19193242501. The next prime is 19193242507. The reversal of 19193242502 is 20524239191.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19193242501) 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 in 31 ways as a sum of consecutive naturals, for example, 2901683 + ... + 2908289.

It is an arithmetic number, because the mean of its divisors is an integer number (552693120).

Almost surely, 2^19193242502 is an apocalyptic number.

19193242502 is a deficient number, since it is larger than the sum of its proper divisors (16179117178).

19193242502 is a wasteful number, since it uses less digits than its factorization.

19193242502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6865.

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 19193242502 in words is "nineteen billion, one hundred ninety-three million, two hundred forty-two thousand, five hundred two".