2163909729434 has 8 divisors (see below), whose sum is σ = 3245876704980. Its totient is φ = 1081950827776.

The previous prime is 2163909729419. The next prime is 2163909729461. The reversal of 2163909729434 is 4349279093612.

It can be written as a sum of positive squares in 2 ways, for example, as 1627785567409 + 536124162025 = 1275847^2 + 732205^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1296839 + ... + 2451450.

Almost surely, 2^{2163909729434} is an apocalyptic number.

2163909729434 is a deficient number, since it is larger than the sum of its proper divisors (1081966975546).

2163909729434 is a wasteful number, since it uses less digits than its factorization.

2163909729434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4036944.

The product of its (nonzero) digits is 17635968, while the sum is 59.

The spelling of 2163909729434 in words is "two trillion, one hundred sixty-three billion, nine hundred nine million, seven hundred twenty-nine thousand, four hundred thirty-four".