68452004178842 has 16 divisors (see below), whose sum is σ = 103676598960000. Its totient is φ = 33893480844720.

The previous prime is 68452004178841. The next prime is 68452004178847. The reversal of 68452004178842 is 24887140025486.

It is a super-2 number, since 2×68452004178842² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68452004178841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85346342 + ... + 86144657.

It is an arithmetic number, because the mean of its divisors is an integer number (6479787435000).

Almost surely, 2^{68452004178842} is an apocalyptic number.

68452004178842 is a deficient number, since it is larger than the sum of its proper divisors (35224594781158).

68452004178842 is a wasteful number, since it uses less digits than its factorization.

68452004178842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171492941.

The product of its (nonzero) digits is 27525120, while the sum is 59.

The spelling of 68452004178842 in words is "sixty-eight trillion, four hundred fifty-two billion, four million, one hundred seventy-eight thousand, eight hundred forty-two".