48391786961 has 32 divisors (see below), whose sum is σ = 59369760000. Its totient is φ = 39369111936.

The previous prime is 48391786909. The next prime is 48391787047. The reversal of 48391786961 is 16968719384.

It is a de Polignac number, because none of the positive numbers 2^k-48391786961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 48391786894 and 48391786903.

It is not an unprimeable number, because it can be changed into a prime (48391786901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 545645 + ... + 628101.

It is an arithmetic number, because the mean of its divisors is an integer number (1855305000).

Almost surely, 2^48391786961 is an apocalyptic number.

It is an amenable number.

48391786961 is a deficient number, since it is larger than the sum of its proper divisors (10977973039).

48391786961 is an equidigital number, since it uses as much as digits as its factorization.

48391786961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82566 (or 82552 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 62.

The spelling of 48391786961 in words is "forty-eight billion, three hundred ninety-one million, seven hundred eighty-six thousand, nine hundred sixty-one".