5645450631 has 8 divisors (see below), whose sum is σ = 7650665584. Its totient is φ = 3701934720.

The previous prime is 5645450621. The next prime is 5645450689. The reversal of 5645450631 is 1360545465.

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

It is not a de Polignac number, because 5645450631 - 2¹¹ = 5645448583 is a prime.

It is a super-2 number, since 2×5645450631² = 63742225654116596322, which contains 22 as substring.

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 5645450631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5645450621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15424546 + ... + 15424911.

It is an arithmetic number, because the mean of its divisors is an integer number (956333198).

Almost surely, 2^5645450631 is an apocalyptic number.

5645450631 is a deficient number, since it is larger than the sum of its proper divisors (2005214953).

5645450631 is a wasteful number, since it uses less digits than its factorization.

5645450631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30849521.

The product of its (nonzero) digits is 216000, while the sum is 39.

The square root of 5645450631 is about 75136.2138452557. The cubic root of 5645450631 is about 1780.5993259165.

The spelling of 5645450631 in words is "five billion, six hundred forty-five million, four hundred fifty thousand, six hundred thirty-one".