68774774418 has 96 divisors (see below), whose sum is σ = 171773521920. Its totient is φ = 19480163040.

The previous prime is 68774774417. The next prime is 68774774479. The reversal of 68774774418 is 81447747786.

It is a happy number.

68774774418 is a `hidden beast` number, since 6 + 87 + 74 + 7 + 74 + 418 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (68774774417) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25863573 + ... + 25866231.

It is an arithmetic number, because the mean of its divisors is an integer number (1789307520).

Almost surely, 2^68774774418 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68774774418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85886760960).

68774774418 is an abundant number, since it is smaller than the sum of its proper divisors (102998747502).

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

68774774418 is a wasteful number, since it uses less digits than its factorization.

68774774418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4372 (or 4369 counting only the distinct ones).

The product of its digits is 59006976, while the sum is 63.

The spelling of 68774774418 in words is "sixty-eight billion, seven hundred seventy-four million, seven hundred seventy-four thousand, four hundred eighteen".