11718006647431 has 32 divisors (see below), whose sum is σ = 14229762209280. Its totient is φ = 9434544336000.

The previous prime is 11718006647429. The next prime is 11718006647443. The reversal of 11718006647431 is 13474660081711.

It is not a de Polignac number, because 11718006647431 - 2¹ = 11718006647429 is a prime.

It is a super-2 number, since 2×11718006647431² (a number of 27 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 (11718006647461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73911676 + ... + 74070046.

It is an arithmetic number, because the mean of its divisors is an integer number (444680069040).

Almost surely, 2^{11718006647431} is an apocalyptic number.

11718006647431 is a deficient number, since it is larger than the sum of its proper divisors (2511755561849).

11718006647431 is a wasteful number, since it uses less digits than its factorization.

11718006647431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168295.

The product of its (nonzero) digits is 677376, while the sum is 49.

The spelling of 11718006647431 in words is "eleven trillion, seven hundred eighteen billion, six million, six hundred forty-seven thousand, four hundred thirty-one".