1226479975248 has 160 divisors (see below), whose sum is σ = 3474171638784. Its totient is φ = 369757440000.

The previous prime is 1226479975247. The next prime is 1226479975267. The reversal of 1226479975248 is 8425799746221.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226479975247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149003293 + ... + 149011523.

Almost surely, 2^{1226479975248} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1226479975248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1737085819392).

1226479975248 is an abundant number, since it is smaller than the sum of its proper divisors (2247691663536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1226479975248 is a wasteful number, since it uses less digits than its factorization.

1226479975248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9665 (or 9659 counting only the distinct ones).

The product of its digits is 121927680, while the sum is 66.

The spelling of 1226479975248 in words is "one trillion, two hundred twenty-six billion, four hundred seventy-nine million, nine hundred seventy-five thousand, two hundred forty-eight".