11851498864 has 20 divisors (see below), whose sum is σ = 24313001904. Its totient is φ = 5577175808.

The previous prime is 11851498859. The next prime is 11851498891. The reversal of 11851498864 is 46889415811.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21785572 + ... + 21786115.

Almost surely, 2^11851498864 is an apocalyptic number.

It is an amenable number.

11851498864 is an abundant number, since it is smaller than the sum of its proper divisors (12461503040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11851498864 is a wasteful number, since it uses less digits than its factorization.

11851498864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43571712 (or 43571706 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 55.

The spelling of 11851498864 in words is "eleven billion, eight hundred fifty-one million, four hundred ninety-eight thousand, eight hundred sixty-four".