193455256980 has 48 divisors (see below), whose sum is σ = 545939896320. Its totient is φ = 51181861248.

The previous prime is 193455256979. The next prime is 193455257003. The reversal of 193455256980 is 89652554391.

It is a happy number.

193455256980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 193455256980.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12686295 + ... + 12701534.

It is an arithmetic number, because the mean of its divisors is an integer number (11373747840).

Almost surely, 2^193455256980 is an apocalyptic number.

193455256980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

193455256980 is an abundant number, since it is smaller than the sum of its proper divisors (352484639340).

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

193455256980 is a wasteful number, since it uses less digits than its factorization.

193455256980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25387968 (or 25387966 counting only the distinct ones).

The product of its (nonzero) digits is 11664000, while the sum is 57.

The spelling of 193455256980 in words is "one hundred ninety-three billion, four hundred fifty-five million, two hundred fifty-six thousand, nine hundred eighty".