193232972478 has 64 divisors (see below), whose sum is σ = 496330877952. Its totient is φ = 48746776320.

The previous prime is 193232972477. The next prime is 193232972567. The reversal of 193232972478 is 874279232391.

193232972478 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193232972477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7681063 + ... + 7706178.

It is an arithmetic number, because the mean of its divisors is an integer number (7755169968).

Almost surely, 2^193232972478 is an apocalyptic number.

193232972478 is an abundant number, since it is smaller than the sum of its proper divisors (303097905474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

193232972478 is a wasteful number, since it uses less digits than its factorization.

193232972478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15387289.

The product of its digits is 9144576, while the sum is 57.

The spelling of 193232972478 in words is "one hundred ninety-three billion, two hundred thirty-two million, nine hundred seventy-two thousand, four hundred seventy-eight".