11754640440 has 48 divisors (see below), whose sum is σ = 38202582600. Its totient is φ = 3134570688.

The previous prime is 11754640399. The next prime is 11754640459. The reversal of 11754640440 is 4404645711.

It is a happy number.

11754640440 is a `hidden beast` number, since 1 + 1 + 7 + 5 + 4 + 640 + 4 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 11754640395 and 11754640404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16325530 + ... + 16326249.

Almost surely, 2^11754640440 is an apocalyptic number.

11754640440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11754640440 is an abundant number, since it is smaller than the sum of its proper divisors (26447942160).

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

11754640440 is a wasteful number, since it uses less digits than its factorization.

11754640440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32651796 (or 32651789 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 11754640440 in words is "eleven billion, seven hundred fifty-four million, six hundred forty thousand, four hundred forty".