43853785540806 has 16 divisors (see below), whose sum is σ = 87707637992448. Its totient is φ = 14617917361800.

The previous prime is 43853785540777. The next prime is 43853785540819. The reversal of 43853785540806 is 60804558735834.

It is a super-2 number, since 2×43853785540806² (a number of 28 digits) contains 22 as substring.

It is a congruent 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, 10907491 + ... + 14376401.

It is an arithmetic number, because the mean of its divisors is an integer number (5481727374528).

Almost surely, 2^{43853785540806} is an apocalyptic number.

43853785540806 is an abundant number, since it is smaller than the sum of its proper divisors (43853852451642).

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

43853785540806 is a wasteful number, since it uses less digits than its factorization.

43853785540806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5575907.

The product of its (nonzero) digits is 387072000, while the sum is 66.

The spelling of 43853785540806 in words is "forty-three trillion, eight hundred fifty-three billion, seven hundred eighty-five million, five hundred forty thousand, eight hundred six".