12519154340 has 96 divisors (see below), whose sum is σ = 34502630400. Its totient is φ = 3696693120.

The previous prime is 12519154339. The next prime is 12519154369. The reversal of 12519154340 is 4345191521.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 12519154340.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184670 + ... + 243189.

It is an arithmetic number, because the mean of its divisors is an integer number (359402400).

Almost surely, 2^12519154340 is an apocalyptic number.

12519154340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12519154340 is an abundant number, since it is smaller than the sum of its proper divisors (21983476060).

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

12519154340 is a wasteful number, since it uses less digits than its factorization.

12519154340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427905 (or 427903 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 12519154340 in words is "twelve billion, five hundred nineteen million, one hundred fifty-four thousand, three hundred forty".