2029556142905 has 8 divisors (see below), whose sum is σ = 2578730158152. Its totient is φ = 1528136389888.

The previous prime is 2029556142857. The next prime is 2029556142917. The reversal of 2029556142905 is 5092416559202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 684132457129 + 1345423685776 = 827123^2 + 1159924^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2029556142905 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11938565462 + ... + 11938565631.

It is an arithmetic number, because the mean of its divisors is an integer number (322341269769).

Almost surely, 2^{2029556142905} is an apocalyptic number.

It is an amenable number.

2029556142905 is a deficient number, since it is larger than the sum of its proper divisors (549174015247).

2029556142905 is a wasteful number, since it uses less digits than its factorization.

2029556142905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23877131115.

The product of its (nonzero) digits is 1944000, while the sum is 50.

The spelling of 2029556142905 in words is "two trillion, twenty-nine billion, five hundred fifty-six million, one hundred forty-two thousand, nine hundred five".