1254344816641 has 24 divisors (see below), whose sum is σ = 1483215276480. Its totient is φ = 1057413722400.

The previous prime is 1254344816623. The next prime is 1254344816663. The reversal of 1254344816641 is 1466184434521.

It is not a de Polignac number, because 1254344816641 - 2¹⁹ = 1254344292353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (1254344816441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39316306 + ... + 39348196.

It is an arithmetic number, because the mean of its divisors is an integer number (61800636520).

Almost surely, 2^{1254344816641} is an apocalyptic number.

It is an amenable number.

1254344816641 is a deficient number, since it is larger than the sum of its proper divisors (228870459839).

1254344816641 is a wasteful number, since it uses less digits than its factorization.

1254344816641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45125 (or 45118 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 49.

The spelling of 1254344816641 in words is "one trillion, two hundred fifty-four billion, three hundred forty-four million, eight hundred sixteen thousand, six hundred forty-one".