6484740145 has 8 divisors (see below), whose sum is σ = 8380279656. Its totient is φ = 4788731136.

The previous prime is 6484740121. The next prime is 6484740169. The reversal of 6484740145 is 5410474846.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6484740121) and next prime (6484740169).

It can be written as a sum of positive squares in 4 ways, for example, as 10284849 + 6474455296 = 3207^2 + 80464^2 .

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 6484740145 - 2⁹ = 6484739633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49882552 + ... + 49882681.

It is an arithmetic number, because the mean of its divisors is an integer number (1047534957).

Almost surely, 2^6484740145 is an apocalyptic number.

6484740145 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6484740145 is a deficient number, since it is larger than the sum of its proper divisors (1895539511).

6484740145 is a wasteful number, since it uses less digits than its factorization.

6484740145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99765251.

The product of its (nonzero) digits is 430080, while the sum is 43.

The square root of 6484740145 is about 80527.8842699844. The cubic root of 6484740145 is about 1864.7939832856.

The spelling of 6484740145 in words is "six billion, four hundred eighty-four million, seven hundred forty thousand, one hundred forty-five".