5645321140 has 24 divisors (see below), whose sum is σ = 11866851360. Its totient is φ = 2255904288.

The previous prime is 5645321113. The next prime is 5645321141. The reversal of 5645321140 is 411235465.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5645321141) 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, 118122 + ... + 158881.

It is an arithmetic number, because the mean of its divisors is an integer number (494452140).

Almost surely, 2^5645321140 is an apocalyptic number.

It is an amenable number.

5645321140 is an abundant number, since it is smaller than the sum of its proper divisors (6221530220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5645321140 is a wasteful number, since it uses less digits than its factorization.

5645321140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278031 (or 278029 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 5645321140 is about 75135.3521320024. The cubic root of 5645321140 is about 1780.5857118070.

The spelling of 5645321140 in words is "five billion, six hundred forty-five million, three hundred twenty-one thousand, one hundred forty".