1798768678 has 32 divisors (see below), whose sum is σ = 3153024000. Its totient is φ = 753585984.

The previous prime is 1798768661. The next prime is 1798768717. The reversal of 1798768678 is 8768678971.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1057873 + ... + 1059571.

It is an arithmetic number, because the mean of its divisors is an integer number (98532000).

Almost surely, 2^1798768678 is an apocalyptic number.

1798768678 is a deficient number, since it is larger than the sum of its proper divisors (1354255322).

1798768678 is a wasteful number, since it uses less digits than its factorization.

1798768678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3364.

The product of its digits is 56899584, while the sum is 67.

The square root of 1798768678 is about 42411.8931197371. The cubic root of 1798768678 is about 1216.1629599491.

The spelling of 1798768678 in words is "one billion, seven hundred ninety-eight million, seven hundred sixty-eight thousand, six hundred seventy-eight".