43485816261 has 8 divisors (see below), whose sum is σ = 58398219040. Its totient is φ = 28781978832.

The previous prime is 43485816239. The next prime is 43485816271. The reversal of 43485816261 is 16261858434.

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

It is not a de Polignac number, because 43485816261 - 2²² = 43481621957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43485816261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43485816271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52140850 + ... + 52141683.

It is an arithmetic number, because the mean of its divisors is an integer number (7299777380).

Almost surely, 2^43485816261 is an apocalyptic number.

It is an amenable number.

43485816261 is a deficient number, since it is larger than the sum of its proper divisors (14912402779).

43485816261 is a wasteful number, since it uses less digits than its factorization.

43485816261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104282675.

The product of its digits is 1105920, while the sum is 48.

The spelling of 43485816261 in words is "forty-three billion, four hundred eighty-five million, eight hundred sixteen thousand, two hundred sixty-one".