2132456217929 has 4 divisors (see below), whose sum is σ = 2135214894276. Its totient is φ = 2129697541584.

The previous prime is 2132456217923. The next prime is 2132456217943. The reversal of 2132456217929 is 9297126542312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 508615727929 + 1623840490000 = 713173^2 + 1274300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2132456217929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2132456217923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1379337014 + ... + 1379338559.

It is an arithmetic number, because the mean of its divisors is an integer number (533803723569).

Almost surely, 2^{2132456217929} is an apocalyptic number.

It is an amenable number.

2132456217929 is a deficient number, since it is larger than the sum of its proper divisors (2758676347).

2132456217929 is an equidigital number, since it uses as much as digits as its factorization.

2132456217929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2758676346.

The product of its digits is 3265920, while the sum is 53.

The spelling of 2132456217929 in words is "two trillion, one hundred thirty-two billion, four hundred fifty-six million, two hundred seventeen thousand, nine hundred twenty-nine".