5642381765 has 12 divisors (see below), whose sum is σ = 6996324492. Its totient is φ = 4368291840.

The previous prime is 5642381761. The next prime is 5642381777. The reversal of 5642381765 is 5671832465.

It can be written as a sum of positive squares in 2 ways, for example, as 1351738756 + 4290643009 = 36766^2 + 65503^2 .

It is not a de Polignac number, because 5642381765 - 2² = 5642381761 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5642381761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 582332 + ... + 591941.

It is an arithmetic number, because the mean of its divisors is an integer number (583027041).

Almost surely, 2^5642381765 is an apocalyptic number.

It is an amenable number.

5642381765 is a deficient number, since it is larger than the sum of its proper divisors (1353942727).

5642381765 is a wasteful number, since it uses less digits than its factorization.

5642381765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174340 (or 1174309 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 47.

The square root of 5642381765 is about 75115.7890526353. The cubic root of 5642381765 is about 1780.2766229391.

The spelling of 5642381765 in words is "five billion, six hundred forty-two million, three hundred eighty-one thousand, seven hundred sixty-five".