12248025778 has 8 divisors (see below), whose sum is σ = 18718681068. Its totient is φ = 6008465424.

The previous prime is 12248025773. The next prime is 12248025799. The reversal of 12248025778 is 87752084221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12247184889 + 840889 = 110667^2 + 917^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12248025773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57773601 + ... + 57773812.

Almost surely, 2^12248025778 is an apocalyptic number.

12248025778 is a deficient number, since it is larger than the sum of its proper divisors (6470655290).

12248025778 is a wasteful number, since it uses less digits than its factorization.

12248025778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115547468.

The product of its (nonzero) digits is 501760, while the sum is 46.

The spelling of 12248025778 in words is "twelve billion, two hundred forty-eight million, twenty-five thousand, seven hundred seventy-eight".