8435091481 has 4 divisors (see below), whose sum is σ = 8436356964. Its totient is φ = 8433826000.

The previous prime is 8435091479. The next prime is 8435091493. The reversal of 8435091481 is 1841905348.

8435091481 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5793645456 + 2641446025 = 76116^2 + 51395^2 .

It is a cyclic number.

It is not a de Polignac number, because 8435091481 - 2¹ = 8435091479 is a prime.

It is a super-2 number, since 2×8435091481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8435091421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 622690 + ... + 636091.

It is an arithmetic number, because the mean of its divisors is an integer number (2109089241).

Almost surely, 2^8435091481 is an apocalyptic number.

It is an amenable number.

8435091481 is a deficient number, since it is larger than the sum of its proper divisors (1265483).

8435091481 is a wasteful number, since it uses less digits than its factorization.

8435091481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265482.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 8435091481 is about 91842.7541017799. The cubic root of 8435091481 is about 2035.6194835995.

The spelling of 8435091481 in words is "eight billion, four hundred thirty-five million, ninety-one thousand, four hundred eighty-one".