2121514251489 has 28 divisors (see below), whose sum is σ = 3181567794000. Its totient is φ = 1414008681624.

The previous prime is 2121514251431. The next prime is 2121514251497. The reversal of 2121514251489 is 9841524151212.

2121514251489 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 51 + 4 + 2 + 514 + 89 = 666.

It is not a de Polignac number, because 2121514251489 - 2¹⁵ = 2121514218721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121514251289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 2763162 + ... + 3446460.

Almost surely, 2^{2121514251489} is an apocalyptic number.

It is an amenable number.

2121514251489 is a deficient number, since it is larger than the sum of its proper divisors (1060053542511).

2121514251489 is an frugal number, since it uses more digits than its factorization.

2121514251489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687576 (or 687561 counting only the distinct ones).

The product of its digits is 230400, while the sum is 45.

The spelling of 2121514251489 in words is "two trillion, one hundred twenty-one billion, five hundred fourteen million, two hundred fifty-one thousand, four hundred eighty-nine".