1243950445494 has 96 divisors (see below), whose sum is σ = 2932596126720. Its totient is φ = 390118433760.

The previous prime is 1243950445469. The next prime is 1243950445513. The reversal of 1243950445494 is 4945440593421.

1243950445494 is a `hidden beast` number, since 1 + 2 + 4 + 3 + 9 + 50 + 44 + 549 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 1243950445494.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4486899 + ... + 4756065.

It is an arithmetic number, because the mean of its divisors is an integer number (30547876320).

Almost surely, 2^{1243950445494} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1243950445494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1466298063360).

1243950445494 is an abundant number, since it is smaller than the sum of its proper divisors (1688645681226).

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

1243950445494 is a wasteful number, since it uses less digits than its factorization.

1243950445494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269323 (or 269256 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 54.

The spelling of 1243950445494 in words is "one trillion, two hundred forty-three billion, nine hundred fifty million, four hundred forty-five thousand, four hundred ninety-four".