11851498863 has 12 divisors (see below), whose sum is σ = 17127196840. Its totient is φ = 7897138416.

The previous prime is 11851498859. The next prime is 11851498891. The reversal of 11851498863 is 36889415811.

It is a happy number.

11851498863 is a `hidden beast` number, since 11 + 85 + 1 + 498 + 8 + 63 = 666.

It is not a de Polignac number, because 11851498863 - 2² = 11851498859 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 (11851498163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 302233 + ... + 339186.

Almost surely, 2^11851498863 is an apocalyptic number.

11851498863 is a deficient number, since it is larger than the sum of its proper divisors (5275697977).

11851498863 is a wasteful number, since it uses less digits than its factorization.

11851498863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643478 (or 643475 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 54.

The spelling of 11851498863 in words is "eleven billion, eight hundred fifty-one million, four hundred ninety-eight thousand, eight hundred sixty-three".