11519792640 has 240 divisors, whose sum is σ = 40407681600. Its totient is φ = 3032580096.

The previous prime is 11519792633. The next prime is 11519792723. The reversal of 11519792640 is 4629791511.

11519792640 is a `hidden beast` number, since 1 + 1 + 519 + 7 + 92 + 6 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1816996 + ... + 1823324.

It is an arithmetic number, because the mean of its divisors is an integer number (168365340).

Almost surely, 2^11519792640 is an apocalyptic number.

11519792640 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 11519792640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20203840800).

11519792640 is an abundant number, since it is smaller than the sum of its proper divisors (28887888960).

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

11519792640 is an equidigital number, since it uses as much as digits as its factorization.

11519792640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6437 (or 6418 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The spelling of 11519792640 in words is "eleven billion, five hundred nineteen million, seven hundred ninety-two thousand, six hundred forty".