12351415545 has 48 divisors (see below), whose sum is σ = 25543077120. Its totient is φ = 5646358368.

The previous prime is 12351415523. The next prime is 12351415547. The reversal of 12351415545 is 54551415321.

12351415545 is a `hidden beast` number, since 1 + 23 + 51 + 41 + 5 + 545 = 666.

12351415545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12351415545 - 2⁸ = 12351415289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12351415547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 926977 + ... + 940206.

It is an arithmetic number, because the mean of its divisors is an integer number (532147440).

Almost surely, 2^12351415545 is an apocalyptic number.

12351415545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12351415545 is an abundant number, since it is smaller than the sum of its proper divisors (13191661575).

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

12351415545 is a wasteful number, since it uses less digits than its factorization.

12351415545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867211 (or 1867198 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

The spelling of 12351415545 in words is "twelve billion, three hundred fifty-one million, four hundred fifteen thousand, five hundred forty-five".