1494711636993 has 8 divisors (see below), whose sum is σ = 2214387610400. Its totient is φ = 996474424644.

The previous prime is 1494711636959. The next prime is 1494711637061. The reversal of 1494711636993 is 3996361174941.

1494711636993 is a `hidden beast` number, since 1 + 4 + 9 + 471 + 16 + 3 + 69 + 93 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-1494711636993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1494711636993.

It is not an unprimeable number, because it can be changed into a prime (1494711636953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27679845103 + ... + 27679845156.

It is an arithmetic number, because the mean of its divisors is an integer number (276798451300).

Almost surely, 2^{1494711636993} is an apocalyptic number.

It is an amenable number.

1494711636993 is a deficient number, since it is larger than the sum of its proper divisors (719675973407).

1494711636993 is an equidigital number, since it uses as much as digits as its factorization.

1494711636993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55359690268 (or 55359690262 counting only the distinct ones).

The product of its digits is 26453952, while the sum is 63.

Adding to 1494711636993 its sum of digits (63), we get a square (1494711637056 = 1222584²).

The spelling of 1494711636993 in words is "one trillion, four hundred ninety-four billion, seven hundred eleven million, six hundred thirty-six thousand, nine hundred ninety-three".