3654168481 has 4 divisors (see below), whose sum is σ = 3716103600. Its totient is φ = 3592233364.

The previous prime is 3654168457. The next prime is 3654168499. The reversal of 3654168481 is 1848614563.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3654168481 is a prime.

It is a super-2 number, since 2×3654168481² = 26705894575067694722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3654168451) 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, 30967471 + ... + 30967588.

It is an arithmetic number, because the mean of its divisors is an integer number (929025900).

Almost surely, 2^3654168481 is an apocalyptic number.

It is an amenable number.

3654168481 is a deficient number, since it is larger than the sum of its proper divisors (61935119).

3654168481 is an equidigital number, since it uses as much as digits as its factorization.

3654168481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61935118.

The product of its digits is 552960, while the sum is 46.

The square root of 3654168481 is about 60449.7186180382. The cubic root of 3654168481 is about 1540.2676322685.

The spelling of 3654168481 in words is "three billion, six hundred fifty-four million, one hundred sixty-eight thousand, four hundred eighty-one".