11362639871 has 4 divisors (see below), whose sum is σ = 12395607144. Its totient is φ = 10329672600.

The previous prime is 11362639829. The next prime is 11362639889. The reversal of 11362639871 is 17893626311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17893626311 = 11 ⋅1626693301.

It is a cyclic number.

It is not a de Polignac number, because 11362639871 - 2¹⁸ = 11362377727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11362630871) 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, 516483620 + ... + 516483641.

It is an arithmetic number, because the mean of its divisors is an integer number (3098901786).

Almost surely, 2^11362639871 is an apocalyptic number.

11362639871 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11362639871 is a deficient number, since it is larger than the sum of its proper divisors (1032967273).

11362639871 is a wasteful number, since it uses less digits than its factorization.

11362639871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032967272.

The product of its digits is 326592, while the sum is 47.

The spelling of 11362639871 in words is "eleven billion, three hundred sixty-two million, six hundred thirty-nine thousand, eight hundred seventy-one".