68370978 has 24 divisors (see below), whose sum is σ = 148071888. Its totient is φ = 21036912.

The previous prime is 68370961. The next prime is 68370979. The reversal of 68370978 is 87907386.

It is not an unprimeable number, because it can be changed into a prime (68370979) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32700 + ... + 34727.

It is an arithmetic number, because the mean of its divisors is an integer number (6169662).

Almost surely, 2^68370978 is an apocalyptic number.

68370978 is an abundant number, since it is smaller than the sum of its proper divisors (79700910).

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

68370978 is a wasteful number, since it uses less digits than its factorization.

68370978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67458 (or 67445 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 68370978 is about 8268.6745007891. The cubic root of 68370978 is about 408.9064214427.

The spelling of 68370978 in words is "sixty-eight million, three hundred seventy thousand, nine hundred seventy-eight".