12619261982 has 4 divisors (see below), whose sum is σ = 18928892976. Its totient is φ = 6309630990.

The previous prime is 12619261979. The next prime is 12619261997. The reversal of 12619261982 is 28916291621.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3154815494 + ... + 3154815497.

It is an arithmetic number, because the mean of its divisors is an integer number (4732223244).

Almost surely, 2^12619261982 is an apocalyptic number.

12619261982 is a deficient number, since it is larger than the sum of its proper divisors (6309630994).

12619261982 is an equidigital number, since it uses as much as digits as its factorization.

12619261982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6309630993.

The product of its digits is 186624, while the sum is 47.

The spelling of 12619261982 in words is "twelve billion, six hundred nineteen million, two hundred sixty-one thousand, nine hundred eighty-two".