68782817125 has 32 divisors (see below), whose sum is σ = 93915199872. Its totient is φ = 49879360000.

The previous prime is 68782817119. The next prime is 68782817171. The reversal of 68782817125 is 52171828786.

It is not a de Polignac number, because 68782817125 - 2¹³ = 68782808933 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 405045 + ... + 549205.

It is an arithmetic number, because the mean of its divisors is an integer number (2934849996).

Almost surely, 2^68782817125 is an apocalyptic number.

It is an amenable number.

68782817125 is a deficient number, since it is larger than the sum of its proper divisors (25132382747).

68782817125 is a wasteful number, since it uses less digits than its factorization.

68782817125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144534 (or 144524 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 55.

The spelling of 68782817125 in words is "sixty-eight billion, seven hundred eighty-two million, eight hundred seventeen thousand, one hundred twenty-five".