12120991486 has 16 divisors (see below), whose sum is σ = 18405072000. Its totient is φ = 5986003608.

The previous prime is 12120991469. The next prime is 12120991577. The reversal of 12120991486 is 68419902121.

It is a congruent number.

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, 1023145 + ... + 1034923.

It is an arithmetic number, because the mean of its divisors is an integer number (1150317000).

Almost surely, 2^12120991486 is an apocalyptic number.

12120991486 is a deficient number, since it is larger than the sum of its proper divisors (6284080514).

12120991486 is a wasteful number, since it uses less digits than its factorization.

12120991486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18063.

The product of its (nonzero) digits is 62208, while the sum is 43.

The spelling of 12120991486 in words is "twelve billion, one hundred twenty million, nine hundred ninety-one thousand, four hundred eighty-six".