48731644981 has 8 divisors (see below), whose sum is σ = 48814601184. Its totient is φ = 48648724080.

The previous prime is 48731644943. The next prime is 48731645029. The reversal of 48731644981 is 18944613784.

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 48731644981 - 2²⁵ = 48698090549 is a prime.

It is a super-2 number, since 2×48731644981² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48731644931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5248315 + ... + 5257591.

It is an arithmetic number, because the mean of its divisors is an integer number (6101825148).

Almost surely, 2^48731644981 is an apocalyptic number.

It is an amenable number.

48731644981 is a deficient number, since it is larger than the sum of its proper divisors (82956203).

48731644981 is an equidigital number, since it uses as much as digits as its factorization.

48731644981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17651.

The product of its digits is 4644864, while the sum is 55.

The spelling of 48731644981 in words is "forty-eight billion, seven hundred thirty-one million, six hundred forty-four thousand, nine hundred eighty-one".