11519519241820 has 24 divisors (see below), whose sum is σ = 24193698830784. Its totient is φ = 4607291806656.

The previous prime is 11519519241787. The next prime is 11519519241899. The reversal of 11519519241820 is 2814291591511.

11519519241820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11519519241820² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32060004 + ... + 32417323.

It is an arithmetic number, because the mean of its divisors is an integer number (1008070784616).

Almost surely, 2^{11519519241820} is an apocalyptic number.

11519519241820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11519519241820 is an abundant number, since it is smaller than the sum of its proper divisors (12674179588964).

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

11519519241820 is a wasteful number, since it uses less digits than its factorization.

11519519241820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64486269 (or 64486267 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 49.

The spelling of 11519519241820 in words is "eleven trillion, five hundred nineteen billion, five hundred nineteen million, two hundred forty-one thousand, eight hundred twenty".