12642550400650 has 96 divisors (see below), whose sum is σ = 24066756771840. Its totient is φ = 4939817400000.

The previous prime is 12642550400621. The next prime is 12642550400657. The reversal of 12642550400650 is 5600405524621.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12642550400657) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 338569681 + ... + 338607019.

It is an arithmetic number, because the mean of its divisors is an integer number (250695383040).

Almost surely, 2^{12642550400650} is an apocalyptic number.

12642550400650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12642550400650 is a deficient number, since it is larger than the sum of its proper divisors (11424206371190).

12642550400650 is a wasteful number, since it uses less digits than its factorization.

12642550400650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38300 (or 38295 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 12642550400650 in words is "twelve trillion, six hundred forty-two billion, five hundred fifty million, four hundred thousand, six hundred fifty".