2151245050513 has 16 divisors (see below), whose sum is σ = 2355870128976. Its totient is φ = 1952383703040.

The previous prime is 2151245050469. The next prime is 2151245050541. The reversal of 2151245050513 is 3150505421512.

It can be written as a sum of positive squares in 8 ways, for example, as 558618718464 + 1592626332049 = 747408^2 + 1261993^2 .

It is a cyclic number.

It is not a de Polignac number, because 2151245050513 - 2⁹ = 2151245050001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2151245050013) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3274648 + ... + 3876313.

It is an arithmetic number, because the mean of its divisors is an integer number (147241883061).

Almost surely, 2^{2151245050513} is an apocalyptic number.

It is an amenable number.

2151245050513 is a deficient number, since it is larger than the sum of its proper divisors (204625078463).

2151245050513 is a wasteful number, since it uses less digits than its factorization.

2151245050513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7151364.

The product of its (nonzero) digits is 30000, while the sum is 34.

The spelling of 2151245050513 in words is "two trillion, one hundred fifty-one billion, two hundred forty-five million, fifty thousand, five hundred thirteen".