11534351520 has 48 divisors (see below), whose sum is σ = 36333208800. Its totient is φ = 3075826944.

The previous prime is 11534351509. The next prime is 11534351533. The reversal of 11534351520 is 2515343511.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 12014470 + ... + 12015429.

It is an arithmetic number, because the mean of its divisors is an integer number (756941850).

Almost surely, 2^11534351520 is an apocalyptic number.

11534351520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11534351520 is an abundant number, since it is smaller than the sum of its proper divisors (24798857280).

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

11534351520 is a wasteful number, since it uses less digits than its factorization.

11534351520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24029917 (or 24029909 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 11534351520 in words is "eleven billion, five hundred thirty-four million, three hundred fifty-one thousand, five hundred twenty".