193912648538 has 16 divisors (see below), whose sum is σ = 332427332544. Its totient is φ = 83104008480.

The previous prime is 193912648529. The next prime is 193912648547. The reversal of 193912648538 is 835846219391.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (193912648529) and next prime (193912648547).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1574558 + ... + 1693238.

It is an arithmetic number, because the mean of its divisors is an integer number (20776708284).

Almost surely, 2^193912648538 is an apocalyptic number.

193912648538 is a deficient number, since it is larger than the sum of its proper divisors (138514684006).

193912648538 is a wasteful number, since it uses less digits than its factorization.

193912648538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235397.

The product of its digits is 11197440, while the sum is 59.

The spelling of 193912648538 in words is "one hundred ninety-three billion, nine hundred twelve million, six hundred forty-eight thousand, five hundred thirty-eight".