6420587743 has 8 divisors (see below), whose sum is σ = 6475765760. Its totient is φ = 6365482200.

The previous prime is 6420587737. The next prime is 6420587759. The reversal of 6420587743 is 3477850246.

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

It is a cyclic number.

It is not a de Polignac number, because 6420587743 - 2¹⁷ = 6420456671 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6420587693 and 6420587702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6420587773) 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, 167968 + ... + 202618.

It is an arithmetic number, because the mean of its divisors is an integer number (809470720).

Almost surely, 2^6420587743 is an apocalyptic number.

6420587743 is a deficient number, since it is larger than the sum of its proper divisors (55178017).

6420587743 is a wasteful number, since it uses less digits than its factorization.

6420587743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36237.

The product of its (nonzero) digits is 1128960, while the sum is 46.

The square root of 6420587743 is about 80128.5700795915. The cubic root of 6420587743 is about 1858.6242324870.

The spelling of 6420587743 in words is "six billion, four hundred twenty million, five hundred eighty-seven thousand, seven hundred forty-three".