786868978 has 8 divisors (see below), whose sum is σ = 1348918272. Its totient is φ = 337229556.

The previous prime is 786868921. The next prime is 786868981. The reversal of 786868978 is 879868687.

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

It is a super-3 number, since 3×786868978³ (a number of 28 digits) contains 333 as substring.

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, 28102450 + ... + 28102477.

It is an arithmetic number, because the mean of its divisors is an integer number (168614784).

Almost surely, 2^786868978 is an apocalyptic number.

786868978 is a deficient number, since it is larger than the sum of its proper divisors (562049294).

786868978 is a wasteful number, since it uses less digits than its factorization.

786868978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56204936.

The product of its digits is 65028096, while the sum is 67.

The square root of 786868978 is about 28051.1849660580. The cubic root of 786868978 is about 923.2106545324.

The spelling of 786868978 in words is "seven hundred eighty-six million, eight hundred sixty-eight thousand, nine hundred seventy-eight".