2043652471638 has 64 divisors (see below), whose sum is σ = 4403022624000. Its totient is φ = 630278167680.

The previous prime is 2043652471633. The next prime is 2043652471667. The reversal of 2043652471638 is 8361742563402.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043652471633) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49886788 + ... + 49927736.

It is an arithmetic number, because the mean of its divisors is an integer number (68797228500).

Almost surely, 2^{2043652471638} is an apocalyptic number.

2043652471638 is an abundant number, since it is smaller than the sum of its proper divisors (2359370152362).

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

2043652471638 is a wasteful number, since it uses less digits than its factorization.

2043652471638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51197.

The product of its (nonzero) digits is 5806080, while the sum is 51.

The spelling of 2043652471638 in words is "two trillion, forty-three billion, six hundred fifty-two million, four hundred seventy-one thousand, six hundred thirty-eight".