48661530681 has 4 divisors (see below), whose sum is σ = 64882040912. Its totient is φ = 32441020452.

The previous prime is 48661530679. The next prime is 48661530683. The reversal of 48661530681 is 18603516684.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (48661530679) and next prime (48661530683).

It is not a de Polignac number, because 48661530681 - 2¹ = 48661530679 is a prime.

It is a super-2 number, since 2×48661530681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 48661530681.

It is not an unprimeable number, because it can be changed into a prime (48661530683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8110255111 + ... + 8110255116.

It is an arithmetic number, because the mean of its divisors is an integer number (16220510228).

Almost surely, 2^48661530681 is an apocalyptic number.

It is an amenable number.

48661530681 is a deficient number, since it is larger than the sum of its proper divisors (16220510231).

48661530681 is a wasteful number, since it uses less digits than its factorization.

48661530681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16220510230.

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 48661530681 in words is "forty-eight billion, six hundred sixty-one million, five hundred thirty thousand, six hundred eighty-one".