244992638543 has 16 divisors (see below), whose sum is σ = 277533174240. Its totient is φ = 214864358400.

The previous prime is 244992638521. The next prime is 244992638549. The reversal of 244992638543 is 345836299442.

It is a cyclic number.

It is not a de Polignac number, because 244992638543 - 2⁶ = 244992638479 is a prime.

It is a super-2 number, since 2×244992638543² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244992638549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6197438 + ... + 6236843.

It is an arithmetic number, because the mean of its divisors is an integer number (17345823390).

Almost surely, 2^244992638543 is an apocalyptic number.

244992638543 is a deficient number, since it is larger than the sum of its proper divisors (32540535697).

244992638543 is a wasteful number, since it uses less digits than its factorization.

244992638543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12434378.

The product of its digits is 44789760, while the sum is 59.

The spelling of 244992638543 in words is "two hundred forty-four billion, nine hundred ninety-two million, six hundred thirty-eight thousand, five hundred forty-three".