11519497080 has 1024 divisors, whose sum is σ = 51609600000. Its totient is φ = 2217093120.

The previous prime is 11519497079. The next prime is 11519497117. The reversal of 11519497080 is 8079491511.

It is a happy number.

11519497080 is a `hidden beast` number, since 1 + 151 + 9 + 497 + 0 + 8 + 0 = 666.

It is a super-2 number, since 2×11519497080² (a number of 21 digits) contains 22 as substring.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 57886821 + ... + 57887019.

It is an arithmetic number, because the mean of its divisors is an integer number (50400000).

Almost surely, 2^11519497080 is an apocalyptic number.

11519497080 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 11519497080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25804800000).

11519497080 is an abundant number, since it is smaller than the sum of its proper divisors (40090102920).

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

11519497080 is a wasteful number, since it uses less digits than its factorization.

11519497080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 45.

The spelling of 11519497080 in words is "eleven billion, five hundred nineteen million, four hundred ninety-seven thousand, eighty".