1243064426260 has 24 divisors (see below), whose sum is σ = 2694642886656. Its totient is φ = 481186229280.

The previous prime is 1243064426239. The next prime is 1243064426267. The reversal of 1243064426260 is 626244603421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243064426267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1002470692 + ... + 1002471931.

It is an arithmetic number, because the mean of its divisors is an integer number (112276786944).

Almost surely, 2^{1243064426260} is an apocalyptic number.

1243064426260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1243064426260 is an abundant number, since it is smaller than the sum of its proper divisors (1451578460396).

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

1243064426260 is a wasteful number, since it uses less digits than its factorization.

1243064426260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004942663 (or 2004942661 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 40.

The spelling of 1243064426260 in words is "one trillion, two hundred forty-three billion, sixty-four million, four hundred twenty-six thousand, two hundred sixty".