1216988846 has 8 divisors (see below), whose sum is σ = 1825659000. Its totient is φ = 608435848.

The previous prime is 1216988837. The next prime is 1216988863. The reversal of 1216988846 is 6488896121.

It is a happy number.

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

It is a congruent 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, 4460 + ... + 49536.

It is an arithmetic number, because the mean of its divisors is an integer number (228207375).

Almost surely, 2^1216988846 is an apocalyptic number.

1216988846 is a deficient number, since it is larger than the sum of its proper divisors (608670154).

1216988846 is a wasteful number, since it uses less digits than its factorization.

1216988846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58578.

The product of its digits is 1327104, while the sum is 53.

The square root of 1216988846 is about 34885.3672189358. The cubic root of 1216988846 is about 1067.6499054730.

The spelling of 1216988846 in words is "one billion, two hundred sixteen million, nine hundred eighty-eight thousand, eight hundred forty-six".