12692450986 has 8 divisors (see below), whose sum is σ = 19050171300. Its totient is φ = 6342393888.

The previous prime is 12692450951. The next prime is 12692450999. The reversal of 12692450986 is 68905429621.

It can be written as a sum of positive squares in 2 ways, for example, as 11621918025 + 1070532961 = 107805^2 + 32719^2 .

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

It is a super-2 number, since 2×12692450986² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1911661 + ... + 1918288.

Almost surely, 2^12692450986 is an apocalyptic number.

12692450986 is a deficient number, since it is larger than the sum of its proper divisors (6357720314).

12692450986 is a wasteful number, since it uses less digits than its factorization.

12692450986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3831608.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 12692450986 in words is "twelve billion, six hundred ninety-two million, four hundred fifty thousand, nine hundred eighty-six".