68545385498460 has 192 divisors, whose sum is σ = 217581217297920. Its totient is φ = 15983786972160.

The previous prime is 68545385498437. The next prime is 68545385498477. The reversal of 68545385498460 is 6489458354586.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 289331014 + ... + 289567826.

It is an arithmetic number, because the mean of its divisors is an integer number (1133235506760).

Almost surely, 2^{68545385498460} is an apocalyptic number.

68545385498460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68545385498460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108790608648960).

68545385498460 is an abundant number, since it is smaller than the sum of its proper divisors (149035831799460).

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

68545385498460 is a wasteful number, since it uses less digits than its factorization.

68545385498460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256388 (or 256386 counting only the distinct ones).

The product of its (nonzero) digits is 3981312000, while the sum is 75.

The spelling of 68545385498460 in words is "sixty-eight trillion, five hundred forty-five billion, three hundred eighty-five million, four hundred ninety-eight thousand, four hundred sixty".