2129897344248 has 64 divisors (see below), whose sum is σ = 5917133376000. Its totient is φ = 709875557856.

The previous prime is 2129897344229. The next prime is 2129897344273. The reversal of 2129897344248 is 8424437989212.

It is a happy number.

2129897344248 is a `hidden beast` number, since 2 + 1 + 2 + 9 + 89 + 73 + 442 + 48 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1087911 + ... + 2333097.

It is an arithmetic number, because the mean of its divisors is an integer number (92455209000).

Almost surely, 2^{2129897344248} is an apocalyptic number.

It is an amenable number.

2129897344248 is an abundant number, since it is smaller than the sum of its proper divisors (3787236031752).

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

2129897344248 is a wasteful number, since it uses less digits than its factorization.

2129897344248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253121 (or 1253111 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 63.

The spelling of 2129897344248 in words is "two trillion, one hundred twenty-nine billion, eight hundred ninety-seven million, three hundred forty-four thousand, two hundred forty-eight".