611879978116 has 24 divisors (see below), whose sum is σ = 1168442793504. Its totient is φ = 278053860480.

The previous prime is 611879978077. The next prime is 611879978173.

It is a happy number.

611879978116 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1666270 + ... + 2000053.

It is an arithmetic number, because the mean of its divisors is an integer number (48685116396).

Almost surely, 2^611879978116 is an apocalyptic number.

It is an amenable number.

611879978116 is a deficient number, since it is larger than the sum of its proper divisors (556562815388).

611879978116 is a wasteful number, since it uses less digits than its factorization.

611879978116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3670131 (or 3670129 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 64.

The spelling of 611879978116 in words is "six hundred eleven billion, eight hundred seventy-nine million, nine hundred seventy-eight thousand, one hundred sixteen".