2129747431375 has 16 divisors (see below), whose sum is σ = 2675526969024. Its totient is φ = 1692514500000.

The previous prime is 2129747431367. The next prime is 2129747431391. The reversal of 2129747431375 is 5731347479212.

It is a happy number.

It is not a de Polignac number, because 2129747431375 - 2³ = 2129747431367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56398276 + ... + 56436025.

It is an arithmetic number, because the mean of its divisors is an integer number (167220435564).

Almost surely, 2^{2129747431375} is an apocalyptic number.

2129747431375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2129747431375 is a deficient number, since it is larger than the sum of its proper divisors (545779537649).

2129747431375 is a wasteful number, since it uses less digits than its factorization.

2129747431375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112834467 (or 112834457 counting only the distinct ones).

The product of its digits is 8890560, while the sum is 55.

The spelling of 2129747431375 in words is "two trillion, one hundred twenty-nine billion, seven hundred forty-seven million, four hundred thirty-one thousand, three hundred seventy-five".