68812515042 has 32 divisors (see below), whose sum is σ = 144936630720. Its totient is φ = 21720041280.

The previous prime is 68812515041. The next prime is 68812515043. The reversal of 68812515042 is 24051521886.

It is an interprime number because it is at equal distance from previous prime (68812515041) and next prime (68812515043).

It is a junction number, because it is equal to n+sod(n) for n = 68812514985 and 68812515003.

It is not an unprimeable number, because it can be changed into a prime (68812515041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103108 + ... + 385040.

It is an arithmetic number, because the mean of its divisors is an integer number (4529269710).

Almost surely, 2^68812515042 is an apocalyptic number.

68812515042 is an abundant number, since it is smaller than the sum of its proper divisors (76124115678).

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

68812515042 is a wasteful number, since it uses less digits than its factorization.

68812515042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284098.

The product of its (nonzero) digits is 153600, while the sum is 42.

The spelling of 68812515042 in words is "sixty-eight billion, eight hundred twelve million, five hundred fifteen thousand, forty-two".