11612610778 has 8 divisors (see below), whose sum is σ = 17422815168. Its totient is φ = 5805005724.

The previous prime is 11612610761. The next prime is 11612610791. The reversal of 11612610778 is 87701621611.

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

It is a self number, because there is not a number n which added to its sum of digits gives 11612610778.

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, 638626 + ... + 656557.

It is an arithmetic number, because the mean of its divisors is an integer number (2177851896).

Almost surely, 2^11612610778 is an apocalyptic number.

11612610778 is a deficient number, since it is larger than the sum of its proper divisors (5810204390).

11612610778 is a wasteful number, since it uses less digits than its factorization.

11612610778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299668.

The product of its (nonzero) digits is 28224, while the sum is 40.

The spelling of 11612610778 in words is "eleven billion, six hundred twelve million, six hundred ten thousand, seven hundred seventy-eight".