68501500281400 has 96 divisors (see below), whose sum is σ = 159635151000000. Its totient is φ = 27337099345920.

The previous prime is 68501500281343. The next prime is 68501500281437. The reversal of 68501500281400 is 418200510586.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1239840976 + ... + 1239896224.

It is an arithmetic number, because the mean of its divisors is an integer number (1662866156250).

Almost surely, 2^{68501500281400} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68501500281400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79817575500000).

68501500281400 is an abundant number, since it is smaller than the sum of its proper divisors (91133650718600).

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

68501500281400 is a wasteful number, since it uses less digits than its factorization.

68501500281400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69521 (or 69512 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 40.

Adding to 68501500281400 its reverse (418200510586), we get a palindrome (68919700791986).

The spelling of 68501500281400 in words is "sixty-eight trillion, five hundred one billion, five hundred million, two hundred eighty-one thousand, four hundred".