68042421470 has 8 divisors (see below), whose sum is σ = 122476358664. Its totient is φ = 27216968584.

The previous prime is 68042421439. The next prime is 68042421497. The reversal of 68042421470 is 7412424086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×68042421470² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3402121064 + ... + 3402121083.

It is an arithmetic number, because the mean of its divisors is an integer number (15309544833).

Almost surely, 2^68042421470 is an apocalyptic number.

68042421470 is a deficient number, since it is larger than the sum of its proper divisors (54433937194).

68042421470 is a wasteful number, since it uses less digits than its factorization.

68042421470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6804242154.

The product of its (nonzero) digits is 86016, while the sum is 38.

The spelling of 68042421470 in words is "sixty-eight billion, forty-two million, four hundred twenty-one thousand, four hundred seventy".