45418084681 has 4 divisors (see below), whose sum is σ = 45418531600. Its totient is φ = 45417637764.

The previous prime is 45418084627. The next prime is 45418084727. The reversal of 45418084681 is 18648081454.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 45418084681 - 2⁹ = 45418084169 is a prime.

It is a super-2 number, since 2×45418084681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45418085681) 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, 10930 + ... + 301588.

It is an arithmetic number, because the mean of its divisors is an integer number (11354632900).

Almost surely, 2^45418084681 is an apocalyptic number.

It is an amenable number.

45418084681 is a deficient number, since it is larger than the sum of its proper divisors (446919).

45418084681 is a wasteful number, since it uses less digits than its factorization.

45418084681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446918.

The product of its (nonzero) digits is 983040, while the sum is 49.

The spelling of 45418084681 in words is "forty-five billion, four hundred eighteen million, eighty-four thousand, six hundred eighty-one".