11486718509697 has 6 divisors (see below), whose sum is σ = 16591926736242. Its totient is φ = 7657812339792.

The previous prime is 11486718509663. The next prime is 11486718509701. The reversal of 11486718509697 is 79690581768411.

11486718509697 is a `hidden beast` number, since 1 + 1 + 48 + 6 + 7 + 18 + 509 + 69 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8539714553841 + 2947003955856 = 2922279^2 + 1716684^2 .

It is not a de Polignac number, because 11486718509697 - 2¹⁶ = 11486718444161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11486718509647) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 638151028308 + ... + 638151028325.

It is an arithmetic number, because the mean of its divisors is an integer number (2765321122707).

Almost surely, 2^{11486718509697} is an apocalyptic number.

It is an amenable number.

11486718509697 is a deficient number, since it is larger than the sum of its proper divisors (5105208226545).

11486718509697 is a wasteful number, since it uses less digits than its factorization.

11486718509697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276302056639 (or 1276302056636 counting only the distinct ones).

The product of its (nonzero) digits is 182891520, while the sum is 72.

The spelling of 11486718509697 in words is "eleven trillion, four hundred eighty-six billion, seven hundred eighteen million, five hundred nine thousand, six hundred ninety-seven".