48646564685 has 4 divisors (see below), whose sum is σ = 58375877628. Its totient is φ = 38917251744.

The previous prime is 48646564649. The next prime is 48646564691. The reversal of 48646564685 is 58646564684.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26473567849 + 22172996836 = 162707^2 + 148906^2 .

It is a cyclic number.

It is not a de Polignac number, because 48646564685 - 2¹⁶ = 48646499149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4864656464 + ... + 4864656473.

It is an arithmetic number, because the mean of its divisors is an integer number (14593969407).

Almost surely, 2^48646564685 is an apocalyptic number.

It is an amenable number.

48646564685 is a deficient number, since it is larger than the sum of its proper divisors (9729312943).

48646564685 is an equidigital number, since it uses as much as digits as its factorization.

48646564685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9729312942.

The product of its digits is 132710400, while the sum is 62.

Subtracting 48646564685 from its reverse (58646564684), we obtain a palindrome (9999999999).

The spelling of 48646564685 in words is "forty-eight billion, six hundred forty-six million, five hundred sixty-four thousand, six hundred eighty-five".