68894524818 has 48 divisors (see below), whose sum is σ = 179574707520. Its totient is φ = 18648141408.

The previous prime is 68894524807. The next prime is 68894524843. The reversal of 68894524818 is 81842549886.

68894524818 is a `hidden beast` number, since 6 + 8 + 8 + 94 + 524 + 8 + 18 = 666.

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

It is a Curzon 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, 14386605 + ... + 14391392.

It is an arithmetic number, because the mean of its divisors is an integer number (3741139740).

Almost surely, 2^68894524818 is an apocalyptic number.

68894524818 is an abundant number, since it is smaller than the sum of its proper divisors (110680182702).

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

68894524818 is a wasteful number, since it uses less digits than its factorization.

68894524818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28778031 (or 28778028 counting only the distinct ones).

The product of its digits is 35389440, while the sum is 63.

The spelling of 68894524818 in words is "sixty-eight billion, eight hundred ninety-four million, five hundred twenty-four thousand, eight hundred eighteen".