2145424554152 has 32 divisors (see below), whose sum is σ = 4388575857120. Its totient is φ = 975146879040.

The previous prime is 2145424554149. The next prime is 2145424554167. The reversal of 2145424554152 is 2514554245412.

It is a Harshad number since it is a multiple of its sum of digits (44).

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 7 ways as a sum of consecutive naturals, for example, 1331543 + ... + 2462489.

It is an arithmetic number, because the mean of its divisors is an integer number (137142995535).

Almost surely, 2^{2145424554152} is an apocalyptic number.

2145424554152 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2145424554152 is an abundant number, since it is smaller than the sum of its proper divisors (2243151302968).

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

2145424554152 is a wasteful number, since it uses less digits than its factorization.

2145424554152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152521 (or 1152517 counting only the distinct ones).

The product of its digits is 1280000, while the sum is 44.

Adding to 2145424554152 its reverse (2514554245412), we get a palindrome (4659978799564).

The spelling of 2145424554152 in words is "two trillion, one hundred forty-five billion, four hundred twenty-four million, five hundred fifty-four thousand, one hundred fifty-two".