999781427714 has 4 divisors (see below), whose sum is σ = 1499672141574. Its totient is φ = 499890713856.

The previous prime is 999781427713. The next prime is 999781427741. The reversal of 999781427714 is 417724187999.

999781427714 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 417724187999 = 201203 ⋅2076133.

It can be written as a sum of positive squares in only one way, i.e., 581075372089 + 418706055625 = 762283^2 + 647075^2 .

It is not an unprimeable number, because it can be changed into a prime (999781427713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249945356927 + ... + 249945356930.

Almost surely, 2^999781427714 is an apocalyptic number.

999781427714 is a deficient number, since it is larger than the sum of its proper divisors (499890713860).

999781427714 is a wasteful number, since it uses less digits than its factorization.

999781427714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499890713859.

The product of its digits is 64012032, while the sum is 68.

The spelling of 999781427714 in words is "nine hundred ninety-nine billion, seven hundred eighty-one million, four hundred twenty-seven thousand, seven hundred fourteen".