999999999744001 has 4 divisors (see below), whose sum is σ = 1032258064251904. Its totient is φ = 967741935236100.

The previous prime is 999999999743971. The next prime is 999999999744061. The reversal of 999999999744001 is 100447999999999.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 999999999744001 - 2¹³ = 999999999735809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (999999999744061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16129032253905 + ... + 16129032253966.

It is an arithmetic number, because the mean of its divisors is an integer number (258064516062976).

Almost surely, 2^{999999999744001} is an apocalyptic number.

It is an amenable number.

999999999744001 is a deficient number, since it is larger than the sum of its proper divisors (32258064507903).

999999999744001 is a wasteful number, since it uses less digits than its factorization.

999999999744001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32258064507902.

The product of its (nonzero) digits is 43391094768, while the sum is 97.

The spelling of 999999999744001 in words is "nine hundred ninety-nine trillion, nine hundred ninety-nine billion, nine hundred ninety-nine million, seven hundred forty-four thousand, one".