68070837638 has 8 divisors (see below), whose sum is σ = 102117398232. Its totient is φ = 34031704896.

The previous prime is 68070837581. The next prime is 68070837641. The reversal of 68070837638 is 83673807086.

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

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, 1833995 + ... + 1870742.

It is an arithmetic number, because the mean of its divisors is an integer number (12764674779).

Almost surely, 2^68070837638 is an apocalyptic number.

68070837638 is a deficient number, since it is larger than the sum of its proper divisors (34046560594).

68070837638 is a wasteful number, since it uses less digits than its factorization.

68070837638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3713926.

The product of its (nonzero) digits is 8128512, while the sum is 56.

The spelling of 68070837638 in words is "sixty-eight billion, seventy million, eight hundred thirty-seven thousand, six hundred thirty-eight".