6111668978 has 8 divisors (see below), whose sum is σ = 9277955568. Its totient is φ = 3019017124.

The previous prime is 6111668947. The next prime is 6111668993. The reversal of 6111668978 is 8798661116.

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

It is a Curzon 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, 18408476 + ... + 18408807.

It is an arithmetic number, because the mean of its divisors is an integer number (1159744446).

Almost surely, 2^6111668978 is an apocalyptic number.

6111668978 is a deficient number, since it is larger than the sum of its proper divisors (3166286590).

6111668978 is a wasteful number, since it uses less digits than its factorization.

6111668978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36817368.

The product of its digits is 870912, while the sum is 53.

The square root of 6111668978 is about 78177.1640442399. The cubic root of 6111668978 is about 1828.3244816993.

The spelling of 6111668978 in words is "six billion, one hundred eleven million, six hundred sixty-eight thousand, nine hundred seventy-eight".