6458390648742 has 16 divisors (see below), whose sum is σ = 12991444775280. Its totient is φ = 2140352969952.

The previous prime is 6458390648737. The next prime is 6458390648747. The reversal of 6458390648742 is 2478460938546.

It is an interprime number because it is at equal distance from previous prime (6458390648737) and next prime (6458390648747).

It is a super-2 number, since 2×6458390648742² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6458390648747) 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, 3110977117 + ... + 3110979192.

It is an arithmetic number, because the mean of its divisors is an integer number (811965298455).

Almost surely, 2^{6458390648742} is an apocalyptic number.

6458390648742 is an abundant number, since it is smaller than the sum of its proper divisors (6533054126538).

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

6458390648742 is a wasteful number, since it uses less digits than its factorization.

6458390648742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6221956487.

The product of its (nonzero) digits is 278691840, while the sum is 66.

The spelling of 6458390648742 in words is "six trillion, four hundred fifty-eight billion, three hundred ninety million, six hundred forty-eight thousand, seven hundred forty-two".