5645397924 has 48 divisors (see below), whose sum is σ = 14645030400. Its totient is φ = 1880666208.

The previous prime is 5645397917. The next prime is 5645397931. The reversal of 5645397924 is 4297935465.

5645397924 is a `hidden beast` number, since 564 + 5 + 3 + 9 + 79 + 2 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (5645397917) and next prime (5645397931).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 175114 + ... + 204830.

It is an arithmetic number, because the mean of its divisors is an integer number (305104800).

Almost surely, 2^5645397924 is an apocalyptic number.

5645397924 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

5645397924 is an abundant number, since it is smaller than the sum of its proper divisors (8999632476).

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

5645397924 is a wasteful number, since it uses less digits than its factorization.

5645397924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31489 (or 31481 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 54.

The square root of 5645397924 is about 75135.8631014511. The cubic root of 5645397924 is about 1780.5937845614.

The spelling of 5645397924 in words is "five billion, six hundred forty-five million, three hundred ninety-seven thousand, nine hundred twenty-four".