12285143950 has 24 divisors (see below), whose sum is σ = 22855088520. Its totient is φ = 4913042400.

The previous prime is 12285143933. The next prime is 12285143951. The reversal of 12285143950 is 5934158221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12285143951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 248280 + ... + 293620.

It is an arithmetic number, because the mean of its divisors is an integer number (952295355).

Almost surely, 2^12285143950 is an apocalyptic number.

12285143950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12285143950 is a deficient number, since it is larger than the sum of its proper divisors (10569944570).

12285143950 is a wasteful number, since it uses less digits than its factorization.

12285143950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50772 (or 50767 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 12285143950 in words is "twelve billion, two hundred eighty-five million, one hundred forty-three thousand, nine hundred fifty".