1173242261544 has 32 divisors (see below), whose sum is σ = 3012378781920. Its totient is φ = 380511003456.

The previous prime is 1173242261539. The next prime is 1173242261549. The reversal of 1173242261544 is 4451622423711.

It is an interprime number because it is at equal distance from previous prime (1173242261539) and next prime (1173242261549).

It is a junction number, because it is equal to n+sod(n) for n = 1173242261496 and 1173242261505.

It is not an unprimeable number, because it can be changed into a prime (1173242261549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 660608494 + ... + 660610269.

It is an arithmetic number, because the mean of its divisors is an integer number (94136836935).

Almost surely, 2^{1173242261544} is an apocalyptic number.

It is an amenable number.

1173242261544 is an abundant number, since it is smaller than the sum of its proper divisors (1839136520376).

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

1173242261544 is a wasteful number, since it uses less digits than its factorization.

1173242261544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321218809 (or 1321218805 counting only the distinct ones).

The product of its digits is 322560, while the sum is 42.

The spelling of 1173242261544 in words is "one trillion, one hundred seventy-three billion, two hundred forty-two million, two hundred sixty-one thousand, five hundred forty-four".