1263144314412 has 60 divisors (see below), whose sum is σ = 3358076743560. Its totient is φ = 413911689984.

The previous prime is 1263144314389. The next prime is 1263144314417. The reversal of 1263144314412 is 2144134413621.

It is a happy number.

1263144314412 is a `hidden beast` number, since 1 + 2 + 63 + 1 + 443 + 144 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1263144314417) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 33019813 + ... + 33058044.

It is an arithmetic number, because the mean of its divisors is an integer number (55967945726).

Almost surely, 2^{1263144314412} is an apocalyptic number.

1263144314412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1263144314412 is an abundant number, since it is smaller than the sum of its proper divisors (2094932429148).

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

1263144314412 is a wasteful number, since it uses less digits than its factorization.

1263144314412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66077932 (or 66077921 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The spelling of 1263144314412 in words is "one trillion, two hundred sixty-three billion, one hundred forty-four million, three hundred fourteen thousand, four hundred twelve".