11194758540 has 180 divisors, whose sum is σ = 39616178784. Its totient is φ = 2558703168.

The previous prime is 11194758539. The next prime is 11194758577. The reversal of 11194758540 is 4585749111.

11194758540 is a `hidden beast` number, since 1 + 1 + 19 + 47 + 58 + 540 = 666.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 419229 + ... + 445131.

Almost surely, 2^11194758540 is an apocalyptic number.

11194758540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11194758540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19808089392).

11194758540 is an abundant number, since it is smaller than the sum of its proper divisors (28421420244).

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

11194758540 is a wasteful number, since it uses less digits than its factorization.

11194758540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25946 (or 25920 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 45.

The spelling of 11194758540 in words is "eleven billion, one hundred ninety-four million, seven hundred fifty-eight thousand, five hundred forty".